Out-of-time-ordered correlators in a quantum Ising chain
Abstract
Out-of-time-ordered correlators (OTOC) have been proposed to characterize quantum chaos in generic systems. However, they can also show interesting behavior in integrable models, resembling the OTOC in chaotic systems in some aspects. Here we study the OTOC for different operators in the exactly-solvable one-dimensional quantum Ising spin chain. The OTOC for spin operators that are local in terms of the Jordan-Wigner fermions has a "shell-like"...
Paper Details
Title
Out-of-time-ordered correlators in a quantum Ising chain
Published Date
Apr 18, 2018
Journal
Volume
97
Issue
14
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