Randomness and chaos in qubit models

We introduce randomness into a class of integrable models and study the spectral form factor as a diagnostic to distinguish between randomness and chaos. Spectral form factors exhibit a characteristic dip-ramp-plateau behavior in the N>2 SYK2 model at high temperatures that is absent in the N=2 S...

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Bibliographic Details
Main Authors: Pak Hang Chris Lau, Chen-Te Ma, Jeff Murugan, Masaki Tezuka
Format: Article
Language:English
Published: Elsevier 2019-08-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319304137