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arXiv 2004.00867hep-thgr-qc
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广义纠缠温度与纠缠Smarr关系

Generalized entanglement temperature and entanglement Smarr relation

Ashis Saha, Sunandan Gangopadhyay, Jyoti Prasad Saha

摘要:

我们观察到,在激发态存在下,可以全息地得到子系统的纠缠熵与广义纠缠温度($T_g$)的热力学类Smarr关系.这样的关系自然地出现,要求广义纠缠温度产生精确的霍金温度作为IR极限($l\rightarrow \infty$)中的主导项。值得注意的是,这个关系与黑洞热力学中的Smarr关系具有相同的形式。我们证明了这三个时空的几何形状,即,一个非共形因子的背景,超标度违反几何背景,和一个带电的黑洞背景,对应于一个有限的化学势的场论。

英文摘要:

We observe that in presence of excitation, a thermodynamic Smarr like relation corresponding to a generalized entanglement temperature ($T_g$) can be holographically obtained for the entanglement entropy of a subsystem. Such a relation emerges naturally by demanding that the generalized entanglement temperature produces the exact Hawking temperature as the leading term in the IR limit ($l\rightarrow \infty$). Remarkably, this relation has the same form as the Smarr relation in black hole thermodynamics. We demonstrate this for three spacetime geometries, namely, a background with a nonconformal factor, a hyperscaling violating geometry background, and a charged black hole background which corresponds to a field theory with a finite chemical potential.

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