开放量子系统中的二方 OTOC：信息扰乱和不可逆性

IF 2.8 2区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

New Journal of Physics Pub Date : 2024-09-15 DOI:10.1088/1367-2630/ad77ee

Baibhab Bose, Devvrat Tiwari and Subhashish Banerjee

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引用次数: 0

摘要

信息扰乱领域在过去十年中取得了长足的发展，其中时序外相关器（OTOC）已成为探测信息扰乱的重要工具。在这项研究中，我们使用双方 OTOC（OTOC 的一种特殊形式）来研究原子-场相互作用模型和与倾斜磁场相互作用的伊辛自旋链模型中的信息扰乱。研究中考虑了开放量子系统的影响。在单元动力学条件下，使用双向 OTOC 的信息扰乱和使用熵产生的不可逆性之间的关系得到了探究。在伊辛模型中，明确显示了双向 OTOC 与算子纠缠的等价性。

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Bipartite OTOC in open quantum systems: information scrambling and irreversibility

The field of information scrambling has seen significant growth over the last decade, where the out-of-time-ordered correlator (OTOC) has emerged as a prominent tool to probe it. In this work, we use bipartite OTOC, a particular form of OTOC, to study information scrambling in the atom–field interaction models and the model of the Ising spin chain interacting with a tilted magnetic field. This is done considering the effects of open quantum systems. A relationship between information scrambling, using bipartite OTOC, and irreversibility, using entropy production, is probed under unitary dynamics. The equivalence of bipartite OTOC with operator entanglement is explicitly shown for the Ising model.

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来源期刊

New Journal of Physics 物理-物理：综合

CiteScore

6.20

自引率

3.00%

发文量

504

审稿时长

3.1 months

期刊介绍： New Journal of Physics publishes across the whole of physics, encompassing pure, applied, theoretical and experimental research, as well as interdisciplinary topics where physics forms the central theme. All content is permanently free to read and the journal is funded by an article publication charge.