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arXiv 0811.1794hep-thnucl-th
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规范弦对偶中二阶输运系数的普适性

Universality of second order transport coefficients from the gauge-string duality

Michael Haack, Amos Yarom

摘要:

研究了具有引力对偶的U(1)荷守恒的共形规范理论等离子体的强耦合极限。我们表明,在温和的限制,这种理论的二阶输运系数满足一个普遍的关系,类似于剪切粘度熵比。

英文摘要:

We consider the strongly coupled limit of conformal gauge theory plasmas with conserved U(1) charges which have a gravity dual. We show that, under mild restrictions, the second order transport coefficients of such theories satisfy a universal relation among themselves, similar to the shear viscosity to entropy ratio.

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