局域不确定性关系的普朗克边界

IF 1 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-07-15 DOI:10.1016/j.physc.2025.1354755

Zohar Nussinov , Saurish Chakrabarty

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引用次数: 0

摘要

我们在热量子多体系统中引入了“局部不确定性关系”，由此可以推导出基本边界。这些不等式意味着严格的通用非相对论速度限制（独立于相互作用范围），并且正如我们在当前工作中关注的那样，与传输相关的界限（例如，扩散常数和剪切粘度）。利用混沌界和其他考虑因素，我们引入了简化的非严格通用输运系数不等式，并将所得界与实验数据进行了比较。

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Planckian bounds from local uncertainty relations

We introduce “local uncertainty relations” in thermal quantum many-body systems from which fundamental bounds can be derived. These inequalities imply rigorous universal non-relativistic speed limits (independent of interaction range) and, as we focus on in the current work, bounds associated with transport (e.g., the diffusion constant and shear viscosity). Using the chaos bounds and other considerations, we introduce simplified non-rigorous universal transport coefficient inequalities and compare our resulting bounds against experimental data.

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来源期刊

Physica C-superconductivity and Its Applications 物理-物理：应用

CiteScore

2.70

自引率

11.80%

发文量

102

审稿时长

66 days

期刊介绍： Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.