AdS-施瓦兹柴尔德黑布栅的变形与夸克胶子等离子体的剪切粘度

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY The European Physical Journal Plus Pub Date : 2024-11-20 DOI:10.1140/epjp/s13360-024-05795-8

Roldao da Rocha

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摘要

在AdS/CFT膜范式中实现的（\hbox {AdS}_5\)-Schwarzschild black brane的变形在双粘性流体动力红外极限中被仔细研究。最新的实验数据分析显示，在大型强子对撞机和 RHIC 重离子对撞产生的夸克-胶子等离子体的剪切粘度与熵密度比严重制约了这些变形。虽然这与标准（\hbox {AdS}_5\）-施瓦兹柴尔德黑布林对抗变形的稳健性相吻合，但仍有轻微变形的余地，这些变形可能会对引力产生二环量子修正，这对强耦合对偶场论的影响将得到探讨和讨论。

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Deformations of the AdS–Schwarzschild black brane and the shear viscosity of the quark–gluon plasma

Deformations of the \(\hbox {AdS}_5\)–Schwarzschild black brane, implemented in the AdS/CFT membrane paradigm, are scrutinized in the dual viscous hydrodynamic infrared limit. The latest experimental data analyses, regarding the shear viscosity-to-entropy density ratio of the quark–gluon plasma produced by heavy-ion collisions at the LHC and RHIC, are shown to constrain these deformations severely. Although corroborating with the robustness of the standard \(\hbox {AdS}_5\)–Schwarzschild black brane against deformations, there is still a margin for mild deformations which may carry two-loop quantum corrections to gravity, whose implications to the strongly coupled dual field theory are addressed and discussed.

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来源期刊

The European Physical Journal Plus PHYSICS, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

8.80%

发文量

1150

审稿时长

4-8 weeks

期刊介绍： The aims of this peer-reviewed online journal are to distribute and archive all relevant material required to document, assess, validate and reconstruct in detail the body of knowledge in the physical and related sciences. The scope of EPJ Plus encompasses a broad landscape of fields and disciplines in the physical and related sciences - such as covered by the topical EPJ journals and with the explicit addition of geophysics, astrophysics, general relativity and cosmology, mathematical and quantum physics, classical and fluid mechanics, accelerator and medical physics, as well as physics techniques applied to any other topics, including energy, environment and cultural heritage.