Recovery of Damaged Information and the Out-of-Time-Ordered Correlators.

@article{Yan2020RecoveryOD,
title={Recovery of Damaged Information and the Out-of-Time-Ordered Correlators.},
author={B. Yan and N. Sinitsyn},
journal={Physical review letters},
year={2020},
volume={125 4},
pages={
040605
}
}

The evolution with a complex Hamiltonian generally leads to information scrambling. A time-reversed dynamics unwinds this scrambling and thus leads to the original information recovery. We show that if the scrambled information is, in addition, partially damaged by a local measurement, then such a damage can still be treated by application of the time-reversed protocol. This information recovery is described by the long-time saturation value of a certain out-of-time-ordered correlator of local… Expand