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Many-Body Quantum Interference and the Saturation of Out-of-Time-Order Correlators

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Rammensee, Josef ; Urbina, Juan Diego ; Richter, Klaus

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Date of publication of this fulltext: 09 Oct 2018 06:22


Out-of-time-order correlators (OTOCs) have been proposed as sensitive probes for chaos in interacting quantum systems. They exhibit a characteristic classical exponential growth, but saturate beyond the so-called scrambling or Ehrenfest time τE in the quantum correlated regime. Here we present a path-integral approach for the entire time evolution of OTOCs for bosonic N-particle systems. We first ...


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