信息扰乱--量子热力学视角

IF 1.8 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
EPL Pub Date : 2024-06-03 DOI:10.1209/0295-5075/ad4413
Akram Touil and Sebastian Deffner
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引用次数: 0

摘要

量子信息科学的最新进展揭示了量子多体系统错综复杂的动力学,量子信息扰乱就是一个很好的例子。出于对量子信息热力学的考虑,本视角旨在综合几项关键研究的主要发现,探索量子扰乱的各个方面。我们考虑了时序外相关器(OTOC)和量子互信息等量子化指标、它们与热力学的联系,以及它们在理解混沌与可积分量子系统中的作用。我们将重点放在具有代表性的例子上,涵盖了一系列主题,包括量子信息扰乱的热力学和量子引力模型(如 Sachdev-Ye-Kitaev (SYK) 模型)中的扰乱动力学。通过研究这些不同的方法,我们能够突出量子信息扰乱的多面性,以及它在理解量子力学和热力学交叉点上的量子多体动力学基本方面的意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Information scrambling —A quantum thermodynamic perspective
Recent advances in quantum information science have shed light on the intricate dynamics of quantum many-body systems, for which quantum information scrambling is a perfect example. Motivated by considerations of the thermodynamics of quantum information, this perspective aims at synthesizing key findings from several pivotal studies and exploring various aspects of quantum scrambling. We consider quantifiers such as the out-of-time-ordered correlator (OTOC) and the quantum mutual information, their connections to thermodynamics, and their role in understanding chaotic vs. integrable quantum systems. With a focus on representative examples, we cover a range of topics, including the thermodynamics of quantum information scrambling, and the scrambling dynamics in quantum gravity models such as the Sachdev-Ye-Kitaev (SYK) model. Examining these diverse approaches enables us to highlight the multifaceted nature of quantum information scrambling and its significance in understanding the fundamental aspects of quantum many-body dynamics at the intersection of quantum mechanics and thermodynamics.
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来源期刊
EPL
EPL 物理-物理:综合
CiteScore
3.30
自引率
5.60%
发文量
332
审稿时长
1.9 months
期刊介绍: General physics – physics of elementary particles and fields – nuclear physics – atomic, molecular and optical physics – classical areas of phenomenology – physics of gases, plasmas and electrical discharges – condensed matter – cross-disciplinary physics and related areas of science and technology. Letters submitted to EPL should contain new results, ideas, concepts, experimental methods, theoretical treatments, including those with application potential and be of broad interest and importance to one or several sections of the physics community. The presentation should satisfy the specialist, yet remain understandable to the researchers in other fields through a suitable, clearly written introduction and conclusion (if appropriate). EPL also publishes Comments on Letters previously published in the Journal.
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