3 papers
hep-th2020
Rescuing a black hole in the large- coupled SYK model
Yuri D. Lensky, Xiao-Liang Qi
In this paper, we develop a general effective theory for two copies of the Sachdev-Ye-Kitaev (SYK) model with a time-dependent bilinear coupling. For a quantum quench problem with…
hep-th2020
Size of bulk fermions in the SYK model
Yuri D. Lensky, Xiao-Liang Qi, Pengfei Zhang
The study of quantum gravity in the form of the holographic duality has uncovered and motivated the detailed investigation of various diagnostics of quantum chaos. One such measure…
cond-mat.stat-mech2018
Chaos and High Temperature Pure State Thermalization
Yuri D. Lensky, Xiao-Liang Qi
Classical arguments for thermalization of isolated systems do not apply in a straightforward way to the quantum case. Recently, there has been interest in diagnostics of quantum ch…