4 papers
Scrambling and Lyapunov Exponent in Unitary Networks with Tunable Interactions
Anna Keselman, Laimei Nie, Erez Berg
Scrambling of information in a quantum many-body system, quantified by the out-of-time-ordered correlator (OTOC), is a key manifestation of quantum chaos. A regime of exponential g…
Conformal field theory and the web of quantum chaos diagnostics
Jonah Kudler-Flam, Laimei Nie, Shinsei Ryu
We study three prominent diagnostics of chaos and scrambling in the context of two-dimensional conformal field theory: the spectral form factor, out-of-time-ordered correlators, an…
Collusion of Interactions and Disorder at the Superfluid-Insulator Transition: A Dirty 2d Quantum Critical Point
Hart Goldman, Alex Thomson, Laimei Nie +1
We study the stability of the Wilson-Fisher fixed point of the quantum vector model to quenched disorder in the large- limit. While a random mass is strongly re…
Signature of quantum chaos in operator entanglement in 2d CFTs
Laimei Nie, Masahiro Nozaki, Shinsei Ryu +1
We study operator entanglement measures of the unitary evolution operators of (1+1)-dimensional conformal field theories (CFTs), aiming to uncover their scrambling and chaotic beha…