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arXiv 2005.01048hep-thhep-lat
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纠缠熵的热力学性质与解除禁闭相变

Thermodynamical property of entanglement entropy and deconfinement phase transition

Mitsutoshi Fujita, Song He, Yuan Sun

摘要:

本文分析了Wilson线孤子背景下的全息纠缠熵,导出了类似于热力学热力学第一定律的关系式。由于两个最小表面的竞争,发生了禁闭/解除禁闭的相变。熵c函数探测限制/解除限制相变。它是敏感的自由度(DOF)小于空间圆的大小。当威尔逊线变大时,熵c函数作为尺寸的函数变得非单调,并且不满足通常的c定理。我们分析了一个小的子区域的纠缠熵和类似于热力学热力学第一定律的关系。对于少量的Wilson线,纠缠熵的激发量从基态开始减小。它反映了限制减少了自由度。最后讨论了全息纠缠熵的二级修正。

英文摘要:

We analyze the holographic entanglement entropy in a soliton background with Wilson lines and derive a relation analogous to the first law of thermodynamics. The confinement/deconfinement phase transition occurs due to the competition of two minimal surfaces. The entropic c function probes the confinement/deconfinement phase transition. It is sensitive to the degrees of freedom (DOF) smaller than the size of a spatial circle. When the Wilson line becomes large, the entropic c function becomes non-monotonic as a function of the size and does not satisfy the usual c-theorem. We analyze the entanglement entropy for a small subregion and the relation analogous to the first law of thermodynamics. For the small amount of Wilson lines, the excited amount of the entanglement entropy decreases from the ground state. It reflects that confinement decreases degrees of freedom. We finally discuss the second order correction of the holographic entanglement entropy.

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