All seminars are hosted on Zoom at 12:00 PM PDT (3:00 PM EDT) on Fridays, and can be accessed at these links:
Zoom. (link is external) (The Zoom webinar is slated to begin 1 hr before the actual seminar start time of 12:00 PM PDT.)
Note: Attendance for the Zoom Webinar is capped at 500 participants on a first come first serve basis. Please connect on time to guarantee your participation. The YouTube link is ostensibly unlimited.
Quantum systems subject to both driving and dissipation often have complex, non-thermal steady states, and are at the forefront of research in many areas of physics. For classical systems, microscopic time-reversal symmetry leads to open systems satisfying detailed balance; this symmetry makes it extremely easy to find their stationary states. In this talk, I’ll discuss a new way to think about detailed balance in fully quantum settings based on the existence of a “hidden” time-reversal symmetry. I’ll show how this symmetry has a direct operational utility: it provides a direct way to find exact solutions of non-trivial states. This symmetry is present in a number of experimentally-relevant systems. and has clear observable signatures. I’ll try to give a gentle introduction to these ideas, with a particular focus on models of driven, interacting bosonic modes (as can be realized in superconducting circuits and a variety of quantum optical platforms).