Holographic Schwinger–Keldysh effective field theories including a non-hydrodynamic mode

IF 1.3 3区物理与天体物理 Q4 PHYSICS, APPLIED

Physica C-superconductivity and Its Applications Pub Date : 2025-03-29 DOI:10.1016/j.physc.2025.1354701

Yan Liu , Ya-Wen Sun , Xin-Meng Wu

引用次数: 0

Abstract

We derive the Schwinger–Keldysh effective field theories for diffusion including the lowest non-hydrodynamic degree of freedom from holographic Gubser–Rocha systems. At low temperature the dynamical non-hydrodynamic mode could be either an IR mode or a slow mode, which is related to IR quantum critical excitations or encodes the information of all energy scales. This additional dynamical vector mode could be viewed as an ultraviolet sector of the diffusive hydrodynamic theory. We construct two different effective actions for each case and discuss their physical properties. In particular we show that the Kubo–Martin–Schwinger symmetry is preserved.

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包括非水动力模式的全息Schwinger-Keldysh有效场理论

我们从全息Gubser-Rocha系统中导出了包含最低非水动力自由度的扩散的Schwinger-Keldysh有效场理论。在低温下，动力学非水动力模式可以是红外模式，也可以是慢速模式，它与红外量子临界激发有关，或者编码了所有能量尺度的信息。这种附加的动力矢量模式可以看作是扩散流体力学理论的紫外部分。我们针对每种情况构建了两种不同的有效动作，并讨论了它们的物理性质。特别地，我们证明了Kubo-Martin-Schwinger对称性是保留的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.