Skip to main content
Browse by:

Parametric controls and modular quantum computing in superconducting quantum circuits

Event Image
Friday, March 31, 2023
2:00 pm - 3:00 pm
Michael Hatridge
Triangle Quantum Computing Seminar Series

New attendees sign up to receive weekly invite. Use event URL.

Parametric driving has long been used in weakly nonlinear superconducting circuits to create nearly quantum-limited 'parametric' amplifiers, which are in wide use for the readout of superconducting qubits. However, the off-resonant terms we can activate with parametric driving are ubiquitous in Josephson-junction based circuits. In this talk, I'll review the basics of how we identify and engineer parametric controls in the laboratory and use them in a variety of applications including qubit bath engineering and single- and multi-qubit gates. I will focus on how we are using parametric controls based on the third order nonlinearity of SNAILs to create all-to-all couplings among transmon qubits in small quantum modules, as well as construct quantum state routers to link these modules into large-scale quantum machines.

Contact: Dina Weberg