• Corpus ID: 220128090

Proposal to measure out-of-time-ordered correlations using Bell states.

@article{Sundar2020ProposalTM,
  title={Proposal to measure out-of-time-ordered correlations using Bell states.},
  author={Bhuvanesh Sundar},
  journal={arXiv: Quantum Physics},
  year={2020}
}
We present a protocol to experimentally measure the infinite-temperature out-of-time-ordered correlation (OTOC) -- which is a probe of quantum information scrambling in a system -- for systems with a Hamiltonian which has either a chiral symmetry or a particle-hole symmetry. We show that the OTOC can be obtained by preparing two entangled systems, evolving them with the Hamiltonian, and measuring appropriate local observables. At the cost of requiring two copies of the system and putting… 

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