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Klaus Mølmer

Quantum regression theorem for out-of-time-ordered correlation functions

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We derive an extension of the quantum regression theorem to calculate out-of-time-order correlation functions in Markovian open quantum systems. While so far mostly being applied in the analysis of many-body physics, we demonstrate that out-of-time-order correlation functions appear naturally in optical detection schemes with interferometric delay lines, and we apply our extended quantum regression theorem to calculate the nontrivial photon counting fluctuations in split and recombined signals from a quantum light source.

OriginalsprogEngelsk
Artikelnummer033816
TidsskriftPhysical Review A
Vol/bind99
Nummer3
Antal sider8
ISSN2469-9926
DOI
StatusUdgivet - mar. 2019

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