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Entanglement Suppression -- from Nucleons to Black Holes

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Tuesday, January 24, 2023
3:30 pm - 4:30 pm
Ian Low (Northwestern and ANL)
Triangle Nuclear Theory Colloquium

Ian Low ((Northwestern and ANL) I will discuss recent efforts to understand fundamental interactions of nature from the perspective of quantum information. In one instance, we study the correlation between entanglement suppression and accidental symmetries in non-relativistic scattering of nucleons and spin-1/2 baryons. In particular, we demonstrate that successive entanglement minimization gives rise to increasingly larger emergent symmetries, such as SU(6), SO(8), SU(8) and SU(16), in the pionless EFT. Improved precision from lattice simulations could help determine the amount of accidental symmetries in low-energy QCD. In another instance, we analyze relativistic 2-to-2 scattering of particles interacting through a long range force, focusing on the eikonal limit. Using the massive on-shell formalism, we show that entanglement suppression uniquely selects a class of three-particle interactions known as the minimal coupling, which for massive particles reduces to the minimal coupling to photons and gravitons in the high energy limit. Such a scenario is realized in the scattering of Kerr black holes.

Contact: Laitoya Joyner