Quantum work statistics, Loschmidt echo and information scrambling
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DOI: 10.1038/s41598-018-30982-w
Abstract: A universal relation is established between the quantum work probability distribution of an isolated driven quantum system and the Loschmidt echo dynamics of a two-mode squeezed state. When the initial density matrix is canonical, the… read more here.
Keywords: information scrambling; loschmidt echo; quantum work; work statistics ... See more keywords
Dynamics of quantum information scrambling under decoherence effects measured via active spin clusters
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DOI: 10.1103/physreva.104.062406
Abstract: Developing quantum technologies requires the control and understanding of the non-equilibrium dynamics of quantum information in many-body systems. Local information propagates in the system by creating complex correlations known as information scrambling, as this process… read more here.
Keywords: dynamics quantum; measured via; information scrambling; decoherence ... See more keywords
Information scrambling and the correspondence of entanglement dynamics and operator dynamics in systems with nonlocal interactions
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DOI: 10.1103/physrevb.107.205127
Abstract: How fast quantum information scrambles such that it becomes inaccessible by local probes turns out to be central to various fields. Motivated by recent works on spin systems with nonlocal interactions, we study information scrambling… read more here.
Keywords: information; nonlocal interactions; operator dynamics; systems nonlocal ... See more keywords
Hierarchy of information scrambling, thermalization, and hydrodynamic flow in graphene
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DOI: 10.1103/physrevb.98.045102
Abstract: We determine the information scrambling rate $\lambda_{L}$ due to electron-electron Coulomb interaction in graphene. $\lambda_{L}$ characterizes the growth of chaos and has been argued to give information about the thermalization and hydrodynamic transport coefficients of… read more here.
Keywords: information; thermalization; graphene; thermalization hydrodynamic ... See more keywords
Information Scrambling over Bipartitions: Equilibration, Entropy Production, and Typicality.
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DOI: 10.1103/physrevlett.126.030601
Abstract: In recent years, the out-of-time-order correlator (OTOC) has emerged as a diagnostic tool for information scrambling in quantum many-body systems. Here, we present exact analytical results for the OTOC for a typical pair of random… read more here.
Keywords: information scrambling; entropy production; scrambling bipartitions; bipartitions equilibration ... See more keywords
Quantum Information Scrambling in Non-Markovian Open Quantum System
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DOI: 10.3390/e24111532
Abstract: In this paper, we investigate the dynamics of a spin chain whose two end spins interact with two independent non-Markovian baths by using the non-Markovian quantum state diffusion (QSD) equation approach. Specifically, two issues about… read more here.
Keywords: information; open quantum; system; non markovian ... See more keywords