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Institute for Condensed Matter Theory Seminar: "Operator scrambling, quantum chaos and quantum gravity"

Event Type
The Physics Department & The Institute for Condensed Matter Theory
190 ESB
Jan 27, 2020   12:00 pm  
Xiaoliang Qi, Stanford
Originating Calendar
Physics - Institute for Condensed Matter Theory Seminar

In this talk, I will overview some recent developments in many-body quantum chaotic dynamics and its relation to quantum gravity. I will discuss how to characterize many-body quantum chaos using operator scrambling---the size growth of the support of an operator. I will describe the behavior of operator size in several different systems, including the Sachdev-Ye-Kitaev (SYK) model and quantum spin chains, and also discuss how to relate the operator size to experimental observables in quantum quench experiments. In the last part of the talk I will discuss the relation of operator size and holographic duality.

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