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arXiv 2510.15411hep-thcond-mat.stat-mechgr-qc
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低温流体/引力对应中的量子修正

Quantum Corrections in the Low-Temperature Fluid/Gravity Correspondence

International Centre for Theoretical Physics Asia-Pacific, University of Chinese Academy of Sciences(国际理论物理中心亚太分部,中国科学院大学);Peng Huanwu Center for Fundamental Theory(彭桓武基础理论研究中心);Leinweber Institute for Theoretical Physics, University of Michigan(莱因韦伯理论物理研究所,密歇根大学)

Jun Nian, Leopoldo A. Pando Zayas, Cong-Yuan Yue

AI总结:

该研究利用Jackiw-Teitelboim引力中的量子见解,解决了低温流体/引力对应中的对数红外发散问题,并发现极低温下剪切粘度与熵密度比的普适界限被量子修正违反。

摘要:

构建低温版本的流体/引力对应的尝试遇到了障碍,这些障碍表现为频率中的对数项 $\log(\omega)$,导致应力张量和电荷流的时间非局域本构关系。这些困难可以广泛地呈现为由于额外的红外模式而导致的流体动力学描述的失效。我们利用近极端黑洞物理学的新量子见解,这些见解是在Jackiw-Teitelboim引力的背景下产生的,作为喉部量子涨落的有效描述,来重新审视极低温度下的流体/引力对应。量子修正自然地包含一个新的长度尺度 $C$ 和一个有效作用量,该作用量参数化了近视界对称性的破缺。我们表明,在低温区域内适当选择导数展开中的极限顺序,$\log(\omega)$ 红外发散可以得到解决。通过将红外Schwarzian模式作为长波长流体模式的有效额外贡献进行量子平均,得到的低温有效流体描述是一致的。我们给出了所有相关流体动力学模式的色散关系。我们还重新审视了剪切粘度与熵密度之比,发现在极低温度下,由于量子修正,普遍的 $\frac{1}{4\pi}$ 界限被违反。

英文摘要:

Attempts to construct a low-temperature version of the fluid/gravity correspondence have faced obstacles manifested in the form of logarithmic terms in the frequency, $\log(ω)$, leading to non-local in time constitutive relations for the stress tensor and the charge current. These difficulties can be broadly presented as a breakdown of the hydrodynamic description due to additional infrared modes. We employ new quantum insights into the physics of near-extremal black holes, brought about in the context of Jackiw-Teitelboim gravity, as an effective description of quantum fluctuations in the throat, to revisit the fluid/gravity correspondence at very low temperatures. The quantum corrections naturally include a new length scale, $C$, and an effective action that parametrizes the breaking of near-horizon symmetries. We show that with an appropriate choice of order of limits in the derivative expansion within the low-temperature regime, the $\log(ω)$ infrared divergence can be resolved. By quantum averaging the infrared Schwarzian modes as an effective extra contribution to the long-wavelength fluid modes, the resulting low-temperature effective fluid description is consistent. We present the dispersion relations for all the relevant hydrodynamic modes. We also revisit the shear viscosity to entropy density ratio and find that at very low temperatures the universal $\frac{1}{4π}$ bound is violated due to quantum correction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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