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DTSTART:19450814T190000
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END:VTIMEZONE
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20241016T132231Z
DESCRIPTION:Heat transport investigations can reveal information about pho
 non dynamics and collective transport regimes in an insulator. In this ta
 lk\, I will discuss the insights and implications of the features observe
 d in the thermal transport of two representative perovskite-type complex 
 oxides\, SrTiO3 and BaBiO3. The first compound has gathered fundamental r
 esearch efforts across different topics\, such as superconductivity\, the
 rmoelectricity\, and ferroelectricity [1-2]. Thermal transport in single 
 crystalline SrTiO3 revealed the presence of the Poiseuille flow of phonon
 s at low temperatures and a high-temperature diffusivity approaching the 
 Planckian limit (τ=ℏ/kBT) [3]. The findings pointed to the role of the la
 ttice degrees of freedom and specific phonon modes in setting and manipul
 ating the heat conduction profile. The second one\, BaBiO3\, is the paren
 t compound of the first high-Tc superconductor without transition metal i
 ons. Its undoped insulating phase has an origin yet to be understood. Our
  very recent investigations of thermal conductivity in high-quality singl
 e crystals of BaBiO3 revealed an efficient suppression of heat transfer a
 t high temperatures and a glass-like behaviour at low temperatures\, sugg
 esting an exceptionally high anharmonicity which could be at the base of 
 phonon-mediated emerging phenomena [4]. \n\nREFERENCES\n1.      X. Lin et
  al\, Phys. Rev. X\, 3\, 021002 (2013). \n2.      D. Bäuerle et al.\, Con
 densed Matter\, 38\, 335 (1980).\n3.   V. Martelli et al.\, Phys. Rev. Le
 tt. 120\, 125901 (2018)\n4.   Henriques et al. unpublished.
DURATION:PT1H
DTSTAMP:20241016T132231Z
DTSTART;TZID=America/New_York:20241107T113000
LAST-MODIFIED:20241016T132231Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Condensed Matter Seminar - Exploring thermal transport in complex 
 oxides
UID:CAL-8a00048d-91324965-0192-957e8b46-00002acfdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-SPEAKER:Valentina Martelli
X-BEDEWORK-DUKE-SERIES:Condensed Matter Seminar
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=divine.kumah@duke.edu:Di
 vine Kumah
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Utilities
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20241023T182445Z
DESCRIPTION:Mustapha Ishak-Boushaki will present cosmology results from th
 e Dark Energy Spectroscopic Instrument (DESI) year-1 data for the expansi
 on history derived from precise measurements of the Baryon Acoustic Oscil
 lations (BAO). The results particularly include new stringent constraints
  on the dark energy equation of state\, the Hubble parameter\, spatial cu
 rvature\, and neutrino mass from DESI data with and without various other
  available cosmological data sets. Constraint on H0 will be provided inde
 pendently from the CMB and the local measurements. Dark Energy results in
  some tension with the cosmological constant of LCDM will be presented. S
 ome implications of the results for our cosmological model will be briefl
 y discussed.
DURATION:PT1H
DTSTAMP:20241023T182445Z
DTSTART;TZID=America/New_York:20241114T140000
LAST-MODIFIED:20241023T182445Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar-  First Year Cosmology and Dark Energy Results f
 rom DESI survey
UID:CAL-8a00048d-91324965-0192-ba9fc31b-00003c15demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Mustapha Ishak-Boushaki
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Utilities
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20241025T173841Z
DESCRIPTION:The accelerated expansion of the Universe was first observed a
 lmost 30 years ago using Type 1a supernovae (SN1a) as distance indicators
 . Since then\, the Hubble-Lemaître diagram has been populated by many exp
 eriments\, and modern analyses use approximately 2000 SN1a. Together with
  measurements of the Baryon Acoustic Oscillations and the Cosmic Microwav
 e Background\, they now hint for an evolving dark energy. \nThese differe
 nt compilations use a common set of low-redshift supernovae from various 
 instruments with their own calibrations and completeness. The Zwicky Tran
 sient Facility (ZTF) will change this landscape by providing\, for the fi
 rst time\, a uniform set of nearby supernovae over the whole northern sky
 . \nIn this talk I will introduce ZTF and its newest SN data release (DR2
 ) which includes more than 2000 nearby SN1a\, well-sampled\, and spectros
 copically classified between March 2018 and December 2020. \nI will then 
 show our progress in photometric calibration to enable cosmological analy
 ses. I will focus mostly on the so called relative « ubercalibration » to
  improve survey uniformity.
DURATION:PT1H
DTSTAMP:20241025T173841Z
DTSTART;TZID=America/New_York:20241121T140000
LAST-MODIFIED:20241025T173841Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Towards Supernovae Cosmology with the Zwicky Tr
 ansient Facility
UID:CAL-8a000483-92c3adf6-0192-c4c250a8-00000511demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Benjamin Racine
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20241016T134139Z
DESCRIPTION:Recent advances in conformal field theory have led to the refo
 rmulation of collider jet substructure as the study of correlation functi
 ons of the energy flux\, known as energy correlators. In this talk\, I wi
 ll introduce energy correlator observables and highlight the advantages o
 f their use to probe the quark-gluon plasma (QGP) produced in heavy-ion c
 ollisions. I will also discuss the recently unveiled measurement of the t
 wo-point energy correlator in lead-lead collisions at the Large Hadron Co
 llider. Building on the unique properties of energy correlators\, I will 
 present the first-ever jet substructure observable that corrects for the 
 leading-order effects of selection bias due to energy loss\, an issue tha
 t complicates the interpretation of all jet substructure measurements in 
 heavy-ion collisions. These insights pave the way for a more accurate cha
 racterization of QGP-induced modifications in jet substructure.
DURATION:PT1H
DTSTAMP:20241025T141733Z
DTSTART;TZID=America/New_York:20241203T153000
LAST-MODIFIED:20241025T141733Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Triangle Nuclear Theory Colloquium - Exploring Jet Substructure in
  Heavy-Ion Collisions through Energy Correlators
UID:CAL-8a00048d-91324965-0192-959010a6-00002d70demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=bass@duke.edu:Steffen Ba
 ss
X-BEDEWORK-SPEAKER:Carlota Andres Casas
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20241219T220542Z
DESCRIPTION:I will summarize recent work that aims to blend standard pheno
 menological approaches of \nTMD factorization and evolution with the goal
  of identifying and extracting nonperturbative hadronic structure. \nI wi
 ll argue that certain constraints are needed in order to maintain a parto
 n model interpretation while at the same time \nincluding a consistent tr
 eatment of evolution and perturbation theory.  Some early implementations
  will be shown\, and future directions will be summarized\, particularly 
 with regard to spin dependent TMD pdfs and fragmentation functions.
DURATION:PT1H
DTSTAMP:20250123T151051Z
DTSTART;TZID=America/New_York:20250211T153000
LAST-MODIFIED:20250123T151051Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:TNT: Triangle Nuclear Theory Colloquium - Parametrizing TMD pdfs i
 n applications to hadron structure
UID:CAL-8a000483-92c3adf6-0193-e0f48ac6-0000625cdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=bass@duke.edu:Steffen Ba
 ss
X-BEDEWORK-SPEAKER:Ted Rogers (Old Dominion University)
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250131T135726Z
DESCRIPTION:Astrophysics and cosmology have entered an era of rich dataset
 s from both ground- and space-based observations. This advancement enable
 s compelling studies of galaxy evolution using techniques such as weak gr
 avitational lensing (WL) and spectroscopy.\nOn one side\, we leverage the
  JWST's crystal-clear vision and its cutting-edge instrument\, NIRCam\, t
 o study both dark and visible matter distributions in the COSMOS-Web fiel
 d using WL. Striking WL mass maps from the JWST COSMOS can reveal compell
 ing evidence of the complex interplay between baryonic and dark matter di
 stributions. \nOn the other side\, we utilize ground-based telescope data
  and spectroscopy to investigate the environments of Ultra-Compact Massiv
 e Galaxies (UCMGs)\, aiming to enhance our understanding of their formati
 on and evolution of these objects.
DURATION:PT1H
DTSTAMP:20250131T135726Z
DTSTART;TZID=America/New_York:20250213T140000
LAST-MODIFIED:20250131T135726Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- The cosmic saga: From COSMOS-Web Mass Maps to t
 he Realms of UCMGs
UID:CAL-8a000483-92c3adf6-0194-bca6fa6e-00005bf2demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Diana Scognamiglio
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20250122T223739Z
DESCRIPTION:The nucleon mass\, mN\, is a defining scale in Nature.  In fac
 t\, one understands the origin of almost all mass that is visible in the 
 Universe if one grasps the source of mN.  In modern high-energy physics\,
  approximately 98% of mN is expected to be generated by Standard Model st
 rong interactions\, i.e.\, to emerge from quantum chromodynamics (QCD).  
 The small remainder owes to Higgs boson couplings into QCD.  This present
 ation will present a perspective on these features of the Standard Model 
 strong interactions\, draw links to the emergence of hadron mass and stru
 cture\, and illustrate the connections via a unified set of parameter-fre
 e predictions for pion\, kaon\, nucleon electromagnetic and gravitational
  form factors.
DURATION:PT1H
DTSTAMP:20250130T195401Z
DTSTART;TZID=America/New_York:20250221T133000
LAST-MODIFIED:20250130T195401Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:TNT: Triangle Nuclear Theory Colloquium - Hadron Gravitational For
 m Factors
UID:CAL-8a000483-92c3adf6-0194-902a00c1-00001a0ademobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=bass@duke.edu:Steffen Ba
 ss
X-BEDEWORK-SPEAKER:Craig Roberts (Nanjing University)
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250218T140358Z
DESCRIPTION:T he Vera C. Rubin Observatory Legacy Survey of Space and Time
  (Rubin LSST) is expected to achieve its first system light by late 2025.
  An initial data preview\, drawn from early commissioning phases\, is set
  for 2025-26\, exciting the scientific community as they prepare to explo
 re the Rubin LSST data. In this context\, we have been working on develop
 ing the DESC Time Domain (TD) pipeline with a focus on SNIa cosmology and
  dark energy estimation. In this work\, I present a rigorous cosmology an
 alysis with type Ia supernova performed with the DESC TD pipeline and stu
 dy the improvement from using a photometrically classified SNIa sample\, 
 and with host galaxy photo-z availability over cosmology results from spe
 ctroscopically obtained redshift 'only' SNIa sample. We use two different
  SN datasets: the ELAsTiCC (Extended LSST Astronomical Timeseries Classif
 ication Challenge) and the PLAsTiCC (Photometric LSST Astronomical Time-S
 eries Classification Challenge) supernova sample [2210.07560]. For identi
 fying non type Ia contaminations\, we use a photometric classifier\, SCON
 E (Supernova Classification with a Convolutional Neural Network). We show
  that with the use of photometric SNIa sample there is a significant impr
 ovement in dark energy estimation quantified via the Figure of Merit (FoM
 )\, over spectroscopic only SNIa sample. More details on the analysis and
  results shall be shared during the talk\, as the analysis is not yet com
 plete.
DURATION:PT1H30M
DTSTAMP:20250218T140358Z
DTSTART;TZID=America/New_York:20250306T140000
LAST-MODIFIED:20250218T140358Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Cosmology with Photometric SNIa in the LSST Era
 
UID:CAL-8a000483-92c3adf6-0195-195f6bdb-0000734bdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Dr. Ayan Mitra
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250218T135200Z
DESCRIPTION:Observations of cosmic microwave background (CMB) have played 
 critical role in establishing the standard cosmological paradigm\, the si
 x-parameter Lambda cold dark matter model. In particular\, secondary anis
 otropies of the CMB are remarkable probes of both astrophysics and cosmol
 ogy. The properties of free streaming CMB photons from the surface of las
 t scattering are altered by their interaction with matter in the universe
  carrying crucial information about the the origin\, growth\, and evoluti
 on of structures. In this talk\, I will discuss the potential of a couple
  of these secondary anisotropies\, namely the kinematic and thermal Sunya
 ev-Zeldovich (SZ) effects\, to shed light into some of the long-standing 
 quests in the field of cosmological physics: the physics of the epoch of 
 reionisation\, properties of dark energy and neutrinos\, and the effect o
 f baryonic feedback. I will also demonstrate the challenges posed by astr
 ophysical foregrounds for the detection of these anisotropies and discuss
  strategies for mitigating them. I will finish by presenting some of the 
 recent results and ongoing work from the South Pole Telescope on these fr
 onts and discuss the prospects for future CMB surveys like the CMB-S4 exp
 eriment.
DURATION:PT1H30M
DTSTAMP:20250218T140417Z
DTSTART;TZID=America/New_York:20250306T140000
LAST-MODIFIED:20250218T140417Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar-Cosmic Microwave Background Science from South P
 ole Telescope and Beyond
UID:CAL-8a000483-92c3adf6-0195-19547611-00007288demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Dr. Srinivasan Raghunathan
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Utilities
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250314T130209Z
DESCRIPTION:The Spectro-Photometer for the history of the universe\, Epoch
  of Reionization and ices Explorer (SPHEREx) telescope launched on March 
 11\, 2025 with the goal of providing an all-sky map of the universe in 10
 2 spectral bands from 750-5000 nm. SPHEREx will characterize the spectral
  energy distribution of hundreds of millions of galaxies enabling high pr
 ecision measurements of galaxy properties and redshifts providing a 3-D m
 ap of large scale structure (LSS) over the entire sky covering redshifts 
 from z= 0-1\, complementary to other LSS surveys such as EUCLID and DESI.
  I will describe a new redshift estimator developed for the large number 
 of bands and give an overview of the expected science results. I will als
 o describe a targeted search for narrow band radio emission from axions\,
  a light dark matter candidate. Axions were predicted as a mechanism to e
 xplain the lack of CP violation in the strong force and weakly interact w
 ith photons. In particular\, axions can convert to photons in the presenc
 e of a large magnetic field and could produce a narrow emission line in t
 he direction of objects with large magnetic fields (e.g. neutron stars) w
 ith a photon energy equal to the axion mass. We have been scanning for un
 expected/mysterious emission lines from nearby isolated neutron stars acr
 oss the radio and mm-wave bands where the current model of axions as dark
  matter predicts the most likely axion mass to be.
DURATION:PT1H
DTSTAMP:20250314T130209Z
DTSTART;TZID=America/New_York:20250320T140000
LAST-MODIFIED:20250314T130209Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Fishing for fundamental physics: Constraining t
 he nature of dark matter and dark energy with the SPHEREx all sky survey 
 and with astrophysical searches for evidence of axions
UID:CAL-8a000483-92c3adf6-0195-94bf717d-00000130demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Dr. Philip Mauskopf
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250131T135051Z
DESCRIPTION:The Laser Interferometer Space Antenna (LISA)\, set to launch 
 in 2035\, will open the millihertz gravitational wave (GW) sky\, revealin
 g a rich and complex astrophysical landscape. A vast number of compact ob
 jects will emit strong\, long-duration GWs in this band\, presenting nove
 l data analysis challenges in GW science and offering exciting new opport
 unities for multimessenger research.\nAmong these sources\, tens of thous
 ands of white dwarf binaries in our galaxy will produce nearly monochroma
 tic signals\, acting as persistent "tuning forks" that map the Milky Way'
 s structure.\nIn this talk\, I'll introduce the idea and formalism for a 
 gravitational wave timing array\, where we used tiny modulations in high-
 frequency GWs-such as those from white dwarf binaries-to detect the low-f
 requency GWs they are embedded in\, such as those coming from supermassiv
 e black hole binaries.\nFurthermore\, small compact objects in close insp
 iral into supermassive black holes (extreme mass ratio inspirals - EMRIs)
 \, such as SgrA*\, can also emit complex\, long-duration gravitational wa
 ves visible by LISA\, proving the rich astrophysical environment surround
 ing them.\nI will discuss how electromagnetic signatures of EMRIs can gui
 de the search for their corresponding gravitational waves\, providing a m
 ulti-messenger approach to uncover these elusive cosmic events.
DURATION:PT1H
DTSTAMP:20250131T135051Z
DTSTART;TZID=America/New_York:20250403T140000
LAST-MODIFIED:20250131T135051Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Science with the millihertz Gravitational Wave 
 Sky: Gravitational Wave Timing Arrays and electromagnetically driven EMRI
  searches.
UID:CAL-8a000483-92c3adf6-0194-bca0f2ea-00005bf1demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-SPEAKER:Maria Jose Bustamente
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250320T132410Z
DESCRIPTION:Inflation\, the theory describing a period of exponential expa
 nsion in the early universe\, is a compelling model for the formation of 
 the structure we see in our universe today\, yet little is known about th
 e energy scale and dynamics of the proposed inflationary field(s). In thi
 s talk\, I will describe two ways to experimentally probe the physics of 
 inflation: the cosmic microwave background\, and line intensity mapping. 
 First\, I will describe how the imprint of inflation may exist in the old
 est light in the universe\, the cosmic microwave background. I will prese
 nt the first inflationary constraints from SPT-3G\, and propose ways to i
 ncrease sensitivity to inflation by combining data from large and small a
 perture telescopes for future surveys such as the South Pole Observatory.
  Second\, I will describe a new cosmology technique\, line intensity mapp
 ing (LIM)\, which will be able to characterize the middle ages of the Uni
 verse's history by making a 3D map of structure over the last 11 billion 
 years of cosmic time. The large number of modes in LIM data will provide 
 a unique window into the dynamics of the inflationary field(s). I will de
 scribe the cameras and analysis techniques I am working on to make some o
 f the first LIM measurements with the South Pole Telescope Shirokoff Line
  Intensity Mapper (SPT-SLIM) and the Terahertz Intensity Mapper (TIM). I 
 will present the first results from the SPT-SLIM experiment\, including t
 he first on-sky measurements from January 2025. I will conclude by descri
 bing the instrumentation I am developing for the next generation of LIM c
 ameras to realize LIM as a powerful cosmological probe for years to come.
 
DURATION:PT1H
DTSTAMP:20250320T132410Z
DTSTART;TZID=America/New_York:20250410T140000
LAST-MODIFIED:20250320T132410Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Characterizing Inflation from Antarctica: Impro
 ving Cosmology Constraints with the Cosmic Microwave Background and Line 
 Intensity Mapping
UID:CAL-8a000483-92c3adf6-0195-b3b9c203-0000063edemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-SPEAKER:Jessica Zebrowski
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250429T151643Z
DESCRIPTION:Type Ia supernovae (SNe Ia) are well-known for being precise d
 istance indicators in the local Universe. However\, despite their use in 
 cosmology\, key questions regarding their progenitor systems\, explosion 
 mechanisms\, and intrinsic diversity remain unresolved. Near-infrared (NI
 R) observations of SNe Ia offer unique advantages\, such as reduced dust 
 extinction and uniform peak luminosity\, while also offering insights int
 o the internal composition and structure of their explosions. In this tal
 k\, I present a compilation of SNe Ia from various surveys and the litera
 ture\, with well-sampled NIR light curves\, and analyse their variability
  through Principal Component Analysis (PCA). Theoretical models and corre
 lations between PCA coefficients and light-curve parameters are used for 
 identifying the dominant physical properties\, such as Nickel mass and me
 tallicity\, behind their variability around secondary NIR peak. Additiona
 lly\, the potential for standardising SNe Ia in the NIR to improve their 
 precision as distance indicators is explored.
DURATION:PT1H30M
DTSTAMP:20250429T151643Z
DTSTART;TZID=America/New_York:20250508T140000
LAST-MODIFIED:20250429T151643Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Type Ia supernova in the near-infrared: from ex
 plosion to cosmology
UID:CAL-8a000483-92c3adf6-0196-821f2ccf-0000148edemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Tomás Müller Bravo
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250429T152731Z
DESCRIPTION:It has long been established that the properties of type Ia su
 pernovae (SNe Ia) depend on their local environment\, even after typical 
 standardisation methods. This is typically referred to as the mass step\,
  where SNe Ia in high-mass galaxies are on average brighter than their lo
 w-mass counterparts post-standardisation\, although trends have been esta
 blished with other environmental properties including colour\, specific s
 tar formation rate and distance from the centre of the galaxy. There has 
 been ongoing debate in the field about what is driving these differences\
 , in particular the relative contribution of intrinsic variation and dust
  extinction. I will present recent analysis\, using the probabilistic SN 
 Ia SED model BayeSN\, which found an intrinsic contribution to the mass s
 tep and particularly strong differences around the i-band secondary maxim
 um. These results demonstrate that there are intrinsic differences betwee
 n SNe Ia in different environments and raise an interesting question abou
 t what is driving these results\; understanding this finding can help rev
 eal the underlying physical cause of the environmental dependence of SNe 
 Ia.
DURATION:PT1H30M
DTSTAMP:20250429T152731Z
DTSTART;TZID=America/New_York:20250508T140000
LAST-MODIFIED:20250429T152731Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Environmental dependence of SN Ia i-band second
 ary maximum
UID:CAL-8a000483-92c3adf6-0196-8229120c-00001555demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Matt Grayling
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250326T143750Z
DESCRIPTION:Aims. Type Ia Supernovae (SNe Ia) are crucial tools to measure
  the accelerating expansion of the universe\, today comprising thousands 
 of SNe across multiple telescopes. Accurate measurements of cosmological 
 parameters with SNe Ia require a robust understanding and cross-calibrati
 on of the telescopes and filters. The previous best cross-calibration eff
 ort\, 'Fragilistic'\, provided cross-calibration for 25 photometric syste
 ms\, but offered no public code or ability to easily add new surveys. We 
 aim to provide an open-source\ncross-calibration solution with an eye to 
 the future\, available at https://github.com/bap37/Dovekie/ . Methods. We
  use the Pan-STARRs (PS1) and Gaia all-sky telescopes to characterise the
  measured filters from our 11 photometric\nsystems\, using published fiel
 d stars to\, for the first time\, derive uncertainties on our filter meas
 urements and modify filters to best\nmatch the data. With these filters\,
  and direct observations of a set of DA white dwarves from Boyd et al. (2
 024)\, we simultaneously\ncross-calibrate our zeropoints for each filter 
 in each photometric system\, and train a new SALT model to propagate thes
 e results to\ncosmology. \nResults. We find improvements to the calibrati
 on systematic uncertainty of ×2 for the Pantheon+ (Brout et al. 2022) sam
 ple with a new σw(phot) = 0.011\, and smaller yet still significant impro
 vements to the DES5YR calibration uncertainty. For our Pantheon+- like sa
 mple combined with constraints from Baryonic Acoustic Oscillations and th
 e microwave background radiation\, we estimate a reduction in the ΛCDM te
 nsion from previously reported 2.5σ to 2σ.
DURATION:PT1H
DTSTAMP:20250326T143750Z
DTSTART;TZID=America/New_York:20250515T140000
LAST-MODIFIED:20250326T143750Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- A Reassessment of the Pantheon+ and DES 5YR Cal
 ibration Uncertainties: Dovekie
UID:CAL-8a000483-92c3adf6-0195-d2e35cc0-000009fbdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Brodie Popovic
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250528T141101Z
DESCRIPTION:Aims. Type Ia Supernovae (SNe Ia) are crucial tools to measure
  the accelerating expansion of the universe\, today comprising thousands\
 nof SNe across multiple telescopes. Accurate measurements of cosmological
  parameters with SNe Ia require a robust understanding\nand cross-calibra
 tion of the telescopes and filters. The previous best cross-calibration e
 ffort\, 'Fragilistic'\, provided cross-calibration\nfor 25 photometric sy
 stems\, but offered no public code or ability to easily add new surveys. 
 We aim to provide an open-source\ncross-calibration solution with an eye 
 to the future\, available at https://github.com/bap37/Dovekie/ .\nMethods
 . We use the Pan-STARRs (PS1) and Gaia all-sky telescopes to characterise
  the measured filters from our 11 photometric\nsystems\, using published 
 field stars to\, for the first time\, derive uncertainties on our filter 
 measurements and modify filters to best\nmatch the data. With these filte
 rs\, and direct observations of a set of DA white dwarves from Boyd et al
 . (2024)\, we simultaneously\ncross-calibrate our zeropoints for each fil
 ter in each photometric system\, and train a new SALT model to propagate 
 these results to\ncosmology.\nResults. We find improvements to the calibr
 ation systematic uncertainty of ×2 for the Pantheon+ (Brout et al. 2022) 
 sample with a\nnew σw(phot) = 0.011\, and smaller yet still significant i
 mprovements to the DES5YR calibration uncertainty. For our Pantheon+-\nli
 ke sample combined with constraints from Baryonic Acoustic Oscillations a
 nd the microwave background radiation\, we estimate a\nreduction in the Λ
 CDM tension from previously reported 2.5σ to 2σ.
DURATION:PT1H
DTSTAMP:20250528T141101Z
DTSTART;TZID=America/New_York:20250522T140000
LAST-MODIFIED:20250528T141101Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- A Reassessment of the Pantheon+ and DES 5YR Cal
 ibration Uncertainties: Dovekie
UID:CAL-8a00048b-968cb292-0197-173b72e6-00005136demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Brodie Popovic
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20250701T190008Z
DESCRIPTION:The gauge gravity correspondence allows us to compute far from
  equilibrium dynamics of strongly coupled field theories. Einstein gravit
 y in five dimensional\, asymptotic Anti-de Sitter space is mapped to to N
 =4 Super Yang-Mills theory (SYM)\, which can be used to approximate QCD a
 t high temperatures with limitations that will be discussed. In the limit
  of small gradients this duality becomes an equivalence between black hol
 e dynamics and fluids with small viscosity. We apply holography to comput
 e the collision of energy density distributions in SYM modeling boosted n
 uclei during heavy-ion collisions to address questions concerning thermal
 ization\, hydrodynamization\, and the vorticity of the forming quark-gluo
 n plasma.  Moreover\, we use the fluid gravity correspondence to geometri
 ze turbulent flow and translate statistical properties of turbulent fluid
 s into geometric observables with the goal of explaining anomalous scalin
 g exponents for higher moments of fluid velocity correlators via gravity.
  For this we compute the fluid phase of conformal matter driven by a rand
 omly fluctuating gravitational potential\, numerically solving the evolut
 ion of a black hole in Anti-de Sitter space with a fluctuating\, stochast
 ic boundary metric.
DURATION:PT1H
DTSTAMP:20250703T134247Z
DTSTART;TZID=America/New_York:20250708T153000
LAST-MODIFIED:20250703T134247Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Triangle Nuclear Theory Colloquium - Numerical holography for heav
 y ion physics and hydrodynamics
UID:CAL-8a00ec8b-979413b9-0197-c75c5c06-00000beademobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=berndt.mueller@duke.edu:
 Berndt Mueller
X-BEDEWORK-SPEAKER:Sebastian Waeber
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250519T185018Z
DESCRIPTION:Using supernovae of type Ia for inferring the growth rate of s
 tructure (fσ8) has seen a significant gain in interest in recent years. I
 n particular\, maximizing the potential of fσ8 constraints can be achieve
 d by coupling peculiar velocity estimators with the underlying density fi
 eld. I will present a recent software called flip (Ravoux et al. 2025\, h
 ttps://arxiv.org/abs/2501.16852)\, allowing to perform this measurement w
 ith a likelihood-based method. The mathematical framework on which flip i
 s based allows the reproduction of all the previous models of field covar
 iance for velocities and densities in an algorithmically optimized way wi
 th Hankel transforms. Furthermore\, the flip software contains improvemen
 ts such as the simultaneous inference of all nuisance parameters (includi
 ng velocity estimators)\, accounting for redshift dependence\, and extend
 ing field covariance models. An earlier software version was used to prov
 e the feasibility of measuring fσ8 on ZTF simulations (Carreres et al. 20
 23). Currently\, flip is being tested to measure fσ8 with Pantheon+ data\
 , in LSST simulations (Rosselli et al. in prep.\, Carrerres et al. in pre
 p.)\, and on simulations coupling ZTF SNIa with DESI galaxy field (Ravoux
  et al. in prep.). I will give a general presentation of the flip softwar
 e\, its core concepts\, and the results associated with the previously me
 ntioned studies.
DURATION:PT1H
DTSTAMP:20250519T185018Z
DTSTART;TZID=America/New_York:20250717T140000
LAST-MODIFIED:20250519T185018Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Likelihood-based inference of growth rate with 
 SNIa velocity and galaxy density fields
UID:CAL-8a00048b-968cb292-0196-e9e1e884-00004bfddemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Corentin Ravoux
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250811T153405Z
DESCRIPTION:The upcoming Legacy Survey of Space and Time (LSST) will deliv
 er larger catalogs of solar system object orbits\, sizes\, colors\, and l
 ight curves than any survey to date. However\, all surveys are subject to
  observational and algorithmic bias\, skewing their catalogs' distributio
 ns away from the intrinsic. To prepare to characterize LSST's survey bias
 es\, we develop methods and tools to quantify the selection function of a
  wide-field solar system survey as a function of all six orbital paramete
 rs and absolute magnitude. We apply these methods to debias a novel Helio
 LinC3D search for Centaurs in the Pan-STARRS1 detection catalog\, confirm
 ing a literature Centaur model's marginal distributions\, rejecting its j
 oint distribution\, and estimating an intrinsic population of 21\,400 Cen
 taurs with Hr < 13.7. We use Sorcha\, a new solar system survey simulator
 \, to simulate the ten-year LSST detection catalog of a full-scale solar 
 system\, including cutting-edge population models of near-Earth objects\,
  main belt asteroids\, Jupiter Trojan\, and trans-Neptunian objects. This
  catalog offers the best predictions of the LSST solar system yield and i
 s made publicly available\, allowing researchers to test new methods\, al
 gorithms\, and software on LSST-like data before the survey is conducted.
  Future work includes applying these methods to LSST.
DURATION:PT1H
DTSTAMP:20250811T153405Z
DTSTART;TZID=America/New_York:20250828T140000
LAST-MODIFIED:20250811T153405Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Debiasing the Solar System with LSST
UID:CAL-8a00ec8b-979413b9-0198-99c47649-000050e8demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Jake Kurlander
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20250801T150111Z
DESCRIPTION:Active Galactic Nuclei (AGN) feedback plays an important role 
 in galaxy formation\, impacting star formation and gas conditions across 
 a range of physical and temporal scales. Without AGN feedback\, modern co
 smological simulations fail to replicate global galaxy properties. Howeve
 r\, each simulation employs a unique prescription that can vary dramatica
 lly in its treatment of the underlying physical mechanisms. One promising
  means of better constraining these AGN feedback models is through the ci
 rcumgalactic medium\, as CGM gas should be impacted in differing ways bas
 ed on the implementation of feedback in each simulation. In this talk\, I
  will explore how the AGN feedback prescriptions in the SIMBA and EAGLE s
 imulations shape the CGM. I will assess the observability of these differ
 ences by generating mock thermal Sunyaev-Zel'dovich and X-ray observation
 s and comparing against stacked CGM observations from the Atacama Cosmolo
 gy Telescope and the eROSITA-SRG instrument. I will also present work mod
 ifying the AGN treatment in the SIMBA simulation\, directly probing the i
 mpact different modes of feedback can have on AGN host galaxies and the C
 GM. These results will help determine how current and upcoming missions c
 an be used to constrain models of AGN feedback in cosmological simulation
 s.
DURATION:PT1H
DTSTAMP:20250801T150111Z
DTSTART;TZID=America/New_York:20250911T140000
LAST-MODIFIED:20250801T150111Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology  Seminar- Simulating the Impact of AGN Feedback on X-ray
  and tSZ Observations
UID:CAL-8a00ec8b-979413b9-0198-6626bbe7-0000359ademobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Skylar Grayson
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20250806T161435Z
DESCRIPTION:A variety of low-energy\, high-precision experiments\, such as
  atomic spectroscopy and lepton scattering\, are used to test the electro
 weak structure of light nuclei. The theory support for these experiments 
 is often rooted in modern effective field theory (EFT) techniques. Howeve
 r\, it is necessary to include the effects of radiative corrections at th
 e precision relevant for many experiments\, which comes with new challeng
 es that have previously been unaddressed in the nuclear EFT paradigm. In 
 this talk\, we outline a consistent treatment of radiative corrections in
  pionless EFT using the velocity renormalization group originally develop
 ed in the context of nonrelativistic quantum chromodynamics. We present r
 enormalization group improved calculations of the deuteron charge form fa
 ctor and radiative capture process\, which are relevant for charge radius
  extractions and Big Bang nucleosynthesis\, respectively.
DURATION:PT1H
DTSTAMP:20250812T162458Z
DTSTART;TZID=America/New_York:20250916T153000
LAST-MODIFIED:20250812T162458Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Triangle Nuclear Theory Colloquium - Radiative corrections and the
  renormalization group in few-nucleon systems
UID:CAL-8a00ec8b-979413b9-0198-8029bb2e-000000fbdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=roxanne.springer@duke.ed
 u:Roxanne Springer
X-BEDEWORK-SPEAKER:Thomas Richardson
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-LOCATION:Physics Room 298
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Natural Sciences
CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=8a0292fd-8d13410f-018d-cc5e605b-00004257:Angelica M
 itchell\, J.D.
CREATED:20251014T140957Z
DESCRIPTION:Using DESI DR2 baryon acoustic oscillation distance measuremen
 ts and Planck cosmic microwave background distance priors\, we have measu
 red the dark energy density ρX(z) and dark energy equation of state wX(z)
  as free functions of redshift (smoothly interpolated from values at z=0\
 ,1/3\,2/3\,1\,4/3\,2.33)\, and find both to be consistent with a cosmolog
 ical constant\, with only deviations of 1.2σ for ρX(z) and 1.9σ for wX(z)
  at z=2/3. Our results differ noticeably from those of the DESI Collabora
 tion\, in which they used the same DESI DR2 data combined with Planck dat
 a and found a 3.1σ deviation from a cosmological constant\, a finding whi
 ch is the consequence of their assuming the parametrization wX(z)=w0+wa(1
 −a). Our results indicate that assuming a linear wX(z) could be misleadin
 g and precludes discovering how dark energy actually varies with time at 
 higher redshifts. In our quest to discover the physical nature of dark en
 ergy\, the most urgent goal at present is to determine definitively wheth
 er dark energy density varies with time. We have demonstrated that it is 
 of critical importance to measure dark energy density as a free function 
 of redshift from data. I will discuss our results\, and the important rol
 es for space missions Roman and Euclid in advancing our understanding of 
 dark energy.
DURATION:PT1H
DTSTAMP:20251014T140957Z
DTSTART;TZID=America/New_York:20251106T140000
LAST-MODIFIED:20251014T140957Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Cosmology Seminar- Model-Independent Dark Energy Measurements from
  DESI DR2 Data
UID:CAL-8a00ec8b-979413b9-0199-e30e6f0c-0000135bdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Natural Sciences:/user/publi
 c-user/Topics/Natural Sciences
X-BEDEWORK-SPEAKER:Yun Wang
X-BEDEWORK-DUKE-SERIES:Cosmology Seminar Series
X-BEDEWORK-SUBMITTEDBY:amm342 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260128T223709Z
DESCRIPTION:The pressure-energy relations in the nucleon are derived from 
 the gravitational form factors\, which parameterize matrix elements of th
 e energy-momentum tensor (EMT)\, together with EMT conservation. The stat
 ic pressure distribution arising from the Lorentz trace part of the EMT\,
  as manifested in the spatial stress $\\frac{1}{3} T^{ii}$\, equals minus
  the corresponding trace part of the energy density\, which can be unders
 tood in terms of the gluon and quark condensates.  It can be shown that t
 his trace-anomaly- and sigma-term-induced pressure plays a fundamental ro
 le in the confinement dynamics of QCD. In contrast\, the dynamic pressure
  distribution from the traceless part of the spatial stress tensor equals
  $1/d$ of the corresponding traceless part of the energy density\, where 
 $d$ is the spatial dimension. We point out that the same pressure-energy 
 relations also hold for vortices in type-II superconductors\, where the s
 tatic pressure-energy relation originates from the Cooper-pair condensate
 . Furthermore\, identical equations of motion appear in the $\\Lambda{\\r
 m CDM}$ model of cosmology\, where the static pressure-energy relation ar
 ises from the cosmological constant.
DURATION:PT1H
DTSTAMP:20260330T180921Z
DTSTART;TZID=America/New_York:20260331T153000
LAST-MODIFIED:20260330T180921Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Triangle Nuclear Theory Colloquium - Pressure-Energy Equations of 
 State of Hadrons\, Superconductor Vortices\, and the Cosmos
UID:CAL-8a00eca5-9af98aae-019c-06c0df76-0000209fdemobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=haiyan.gao@duke.edu:Haiy
 an Gao
X-BEDEWORK-SPEAKER:Keh-Fei Liu
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260327T233946Z
DESCRIPTION:Atomically thin character of a two-dimensional (2D) material e
 nsures that it is significantly influenced by neighbors\, thereby resulti
 ng in strong proximity effects [1]: A situation when a 2D material acquir
 es properties absent in a pristine state\, such as superconductivity\, ma
 gnetism\, topological structure or an enhanced spin-orbit coupling (SOC).
  Two-dimensional (2D) Dirac materials host the electron Dirac points with
  gapless linear dispersion close to the Fermi energy and are actively bei
 ng studied for its nontrivial behavior. In this talk I'm going to discuss
  several prominent phenomena realized in 2D Dirac systems with strong pro
 ximity effects.\nUnlike in the 3D case\, the protection of Dirac gapless 
 points in 2D is not robust [2]: In the absence of this protection\, the g
 ap opening favors topological effects induced by the generation of a fini
 te Berry curvature. In our work [3]\, we have combined this with Dirac po
 ints detached from high symmetry points of the Brillouin zone and have st
 udied topological phenomena emerging in 2D materials with movable Dirac p
 oints that can be further controlled by ferroelectrics (FEs). I will disc
 uss topology-enforced kink\nelectronic states at structural domain walls 
 separating opposite FE polarizations and also show that the position of m
 ovable Dirac points modifies the dipole character of the Berry curvature\
 , responsible for switching between the zero and nonzero secondharmonic n
 onlinear Hall conductivity. These predictions can be realized in a wide r
 ange of identified 2D materials\, which is\nsupported by first-principles
  analysis of Cl2Rh2S2-GeS junction.\nFurthermore\, a monolayer graphene\,
  the most remarkable example of a 2D material with Dirac points\, with pr
 oximity effects from either magnetic\, antiferromagnetic or heavy element
 -based materials gets an enhanced SOC\, which promotes the spin-charge in
 terconversion (SCI) [4]. I will discuss how the SCI emerging from spin-ps
 eudospin proximity terms in the Dirac Hamiltonian manifests itself for ac
 -electrical driving across different frequencies: From terahertz range\, 
 where the spin-flip absorption features strong enhancement and anomalous 
 polarization structure [5]\, to mid-infrared range\, where SOC-proximity 
 gives rise to a fine structure of cyclotron resonances\, and up to visibl
 e range where it leads to the remarkable mixing of s- and p- excitons wit
 h a strong brightening of spin-forbidden p-excitons in the absorption spe
 ctrum [6].
DURATION:PT1H
DTSTAMP:20260327T233946Z
DTSTART;TZID=America/New_York:20260402T113000
LAST-MODIFIED:20260327T233946Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Condensed Matter Seminar - Proximity-induced phenomena in two-dime
 nsional Dirac materials: From topological kink states to a spin-charge in
 terconversion
UID:CAL-8a003384-9cc4d1fe-019d-31ab0b10-00001573demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-SPEAKER:Konstantin Denisov
X-BEDEWORK-DUKE-SERIES:Condensed Matter Seminar
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=gleb.finkelstein@duke.ed
 u:Gleb Finkelstein
X-BEDEWORK-IMAGE-X1:993
X-BEDEWORK-IMAGE-Y1:113
X-BEDEWORK-IMAGE-X2:993
X-BEDEWORK-IMAGE-Y2:113
X-BEDEWORK-IMAGE-CROP-WIDTH:0
X-BEDEWORK-IMAGE-CROP-HEIGHT:0
X-BEDEWORK-IMAGE-ALT-TEXT:Proximity-induced phenomena in two-dimensional D
 irac materials
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
X-BEDEWORK-IMAGE:/public/Images/medium-F1_20260327113946PM.png
X-BEDEWORK-THUMB-IMAGE:/public/Images/medium-F1_20260327113946PM-thumb.png
 
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260409T150640Z
DESCRIPTION:Because of its flat energy bands\, the two-dimensional electro
 n gas exhibits a rich set of ground states\, commonly classified in two d
 ifferent classes. Fractional quantum Hall states form one class of ground
  states\; numerous fractional states support Abelian excitations\, but th
 e most interesting ones host non-Abelian excitations. Charge ordered grou
 nd states\, such as the Wigner solid\, electronic bubbles\, and electroni
 c stripe phases form a second class of ground states. In this talk I will
  highlight the profound influence of the structure of the single-electron
  wavefunction on the formation of these two classes of ground states in t
 he twodimensional electron gas hosted in GaAs/AlGaAs quantum wells. In pa
 rticular\, I will discuss two recent experimental findings: a) the quantu
 m phase transition from a non-Abelian fractional state to a stripe phase 
 when the single-electron wavefunction has a single node and b) the prolif
 eration of bubbles for single-electron wavefunctions with a complex nodal
  structure.
DURATION:PT1H
DTSTAMP:20260409T150640Z
DTSTART;TZID=America/New_York:20260409T113000
LAST-MODIFIED:20260409T150640Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Condensed Matter Seminar - Structure of the Single-Electron Wavefu
 nction and Ground States in Flat Electronic Bands
UID:CAL-8a003384-9cc4d1fe-019d-72c7f4b3-00002d92demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-SPEAKER:Gabor Csathy
X-BEDEWORK-DUKE-SERIES:Condensed Matter Seminar
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=gleb.finkelstein@duke.ed
 u:Gleb Finkelstein
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260407T155314Z
DESCRIPTION:Because of its flat energy bands\, the two-dimensional electro
 n gas exhibits a rich set of ground states\, commonly classified in two d
 ifferent classes. Fractional quantum Hall states form one class of ground
  states\; numerous fractional states support Abelian excitations\, but th
 e most interesting ones host non-Abelian excitations. Charge ordered grou
 nd states\, such as the Wigner solid\, electronic bubbles\, and electroni
 c stripe phases form a second class of ground states. In this talk I will
  highlight the profound influence of the structure of the single-electron
  wavefunction on the formation of these two classes of ground states in t
 he twodimensional electron gas hosted in GaAs/AlGaAs quantum wells. In pa
 rticular\, I will discuss two recent experimental findings: a) the quantu
 m phase transition from a non-Abelian fractional state to a stripe phase 
 when the single-electron wavefunction has a single node and b) the prolif
 eration of bubbles for single-electron wavefunctions with a complex nodal
  structure.
DURATION:PT1H
DTSTAMP:20260409T135914Z
DTSTART;TZID=America/New_York:20260409T113000
LAST-MODIFIED:20260409T135914Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Condensed Matter Seminar - Structure of the Single-Electron Wavefu
 nction and Ground States in Flat Electronic Bands
UID:CAL-8a003384-9cc4d1fe-019d-68a5e0eb-000068a6demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=gleb.finkelstein@duke.ed
 u:Gleb Finkelstein
X-BEDEWORK-DUKE-SERIES:Condensed Matter Seminar
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
BEGIN:VEVENT

CATEGORIES:Lectures/Conferences
CATEGORIES:Utilities
CATEGORIES:Panel/Seminar/Colloquium
CATEGORIES:Research
CATEGORIES:Main
CONTACT;X-BEDEWORK-UID=00f1fcdb-0f068baf-010f-068baf83-00000004:None
CREATED:20260220T222827Z
DESCRIPTION:A central goal of the future Electron-Ion Collider and of upco
 ming upgrades at the Large Hadron Collider is the search for a new regime
  of nuclear matter known as the Color Glass Condensate (CGC). In this ext
 reme state\, matter is dominated by an exceptionally dense system of gluo
 ns\, the particles responsible for binding quarks inside protons and nucl
 ei. Over the past two decades\, predictions from the CGC effective theory
  have been confronted with data from HERA\, RHIC\, and the LHC\, yielding
  intriguing hints of gluon saturation\, although definitive evidence rema
 ins elusive.\n\nIn this colloquium\, I will review recent developments in
  the CGC framework and discuss how this physics can be explored through m
 easurements at current and future colliders. I will highlight several nov
 el observables that offer promising new avenues for uncovering this dense
  gluonic regime. I will conclude with a brief discussion of the CGC's bro
 ader connections to other areas of physics.
DURATION:PT1H
DTSTAMP:20260325T164329Z
DTSTART;TZID=America/New_York:20260526T153000
LAST-MODIFIED:20260325T164329Z
LOCATION;X-BEDEWORK-UID=18832edc-1c2ecfef-011c-32333fc8-00000043:Physics 2
 98
STATUS:CONFIRMED
SUMMARY:Triangle Nuclear Theory Colloquium - Mining for gluon saturation a
 t colliders
UID:CAL-8a003294-9c52b03d-019c-7d2b2beb-00001410demobedework@mysite.edu
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Main:/user/public-user/Utili
 ties/Main
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Research:/user/public-user/T
 opics/Research
X-BEDEWORK-ALIAS;X-BEDEWORK-PARAM-DISPLAYNAME=Panel_Seminar_Colloquium:/us
 er/public-user/Lectures_Conferences/Panel_Seminar_Colloquium
X-BEDEWORK-STUDENT-CONTACT;X-BEDEWORK-PARAM-EMAIL=bass@duke.edu:Steffen Ba
 ss
X-BEDEWORK-SPEAKER:Farid Salazar
X-BEDEWORK-DUKE-SERIES:Triangle Nuclear Theory Colloquium
X-BEDEWORK-SUBMITTEDBY:lac135 for Physics (agrp__ArtsandSciences_Physics)
END:VEVENT
END:VCALENDAR

