Emergent Phenomena 290S/QM Speaker Ruihua Fan (Harvard) Wednesday, April 6 at 2:00 pm

Time/Venue Wednesday, April 6 at 2:00 pm Pacific Time in Physics South 402 and via Zoom:

Meeting ID: 995 2349 9113 Passcode: 600704
Ehud Altman
Fun with geometric flow in conformal field theories: from Floquet dynamics to t’ Hooft anomalies
Abstract Real-time evolution in many-body systems is usually hard to describe. It gets simplified in one-dimensional conformal field theory, where certain evolution can be reduced to geometric flow. We will start with reviewing the quasi-particle picture that was introduced in the study of entanglement in CFT, the intuition built on which will suggest some dynamical problems to study. One is a Floquet problem, where we can design the Floquet driving to have both non-heating and various heating phases. The heating phase is not thermalizing but, paradoxically, can be used for cooling. The other problem is to extract some ’t Hooft anomalies, or equivalently, some edge properties from a wavefunction.

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