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arXiv 0710.0756hep-phhep-thnucl-th
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规范/引力对应下的夸克-胶子等离子体/黑洞对偶性

Quark-Gluon Plasma/Black Hole duality from Gauge/Gravity Correspondence

Robi Peschanski

摘要:

夸克-胶子等离子体(QGP)是高能重离子碰撞过程中在小的固有时间内可能形成的物质的QCD相。实验观察似乎有利于强耦合QCD等离子体的流体动力学性质的准完美流体,即快速热化(或各向同性)和小粘度。由于强耦合的存在,对这些性质的理论研究还不明显。规范/引力对应提供了一个启发性的框架,以探索使用对偶弦描述的规范理论的强耦合制度。在简要介绍规范/引力对偶性之后,在现有的各种研究中,我们专注于QGP流体力学的挑战性问题,例如粘性和热化,静态和相对论演化等离子体的引力场。我们展示了如何自然产生的黑洞几何形状的双重性质的一个近乎完美的流体和探索的教训和前景,可以借鉴实际的重离子碰撞的规范/重力对偶的方法。

英文摘要:

The Quark-Gluon Plasma (QGP) is the QCD phase of matter expected to be formed at small proper-times in the collision of heavy-ions at high energy. Experimental observations seem to favor a strongly coupled QCD plasma with the hydrodynamic properties of a quasi-perfect fluid, i.e. rapid thermalization (or isotropization) and small viscosity. The theoretical investigation of such properties is not obvious, due to the the strong coupling. The Gauge/Gravity correspondence provides a stimulating framework to explore the strong coupling regime of gauge theories using the dual string description. After a brief introduction to Gauge/Gravity duality, and among various existing studies, we focus on challenging problems of QGP hydrodynamics, such as viscosity and thermalization, in terms of gravitational duals of both the static and relativistically evolving plasma. We show how a Black Hole geometry arises naturally from the dual properties of a nearly perfect fluid and explore the lessons and prospects one may draw for actual heavy ion collisions from the Gauge/Gravity duality approach.

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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