Corpus ID: 235743203

Proposal for measuring out-of-time-ordered correlators at finite temperature with coupled spin chains

  title={Proposal for measuring out-of-time-ordered correlators at finite temperature with coupled spin chains},
  author={Bhuvanesh Sundar and Andreas Elben and Lata Kh Joshi and Torsten V. Zache},
Information scrambling, which is the spread of local information through a system’s many-body degrees of freedom, is an intrinsic feature of many-body dynamics. In quantum systems, the out-of-time-ordered correlator (OTOC) quantifies information scrambling. Motivated by experiments that have measured the OTOC at infinite temperature and a theory proposal to measure the OTOC at finite temperature using the thermofield double state, we describe a protocol to measure the OTOC in a finite… Expand

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