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arXiv 1503.02896hep-thgr-qc
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基于$AdS_3/CFT_2$的二维全息超导体的全息纠缠熵

Holographic Entanglement Entropy in 2D Holographic Superconductor via $AdS_3/CFT_2$

Davood Momeni, Hossein Gholizade, Muhammad Raza, Ratbay Myrzakulov

摘要:

本文的目的是研究二维全息超导体中的全息纠缠熵。事实上,由于具有逆反应的正常相和超导相内的近似解的优点,可以计算这种熵的精确形式。通过将紫外和红外限制应用于积分,得到了HEE的近似表达式。如果该软件无法解析计算最小曲面积分,则可以对相应项进行数值计算。我们将理解面积公式是如何结合畴壁近似的结构的。我们看到,HEE随皮带角度线性变化。这是由于这种类型的熵的扩展性和熵力的出现。我们发现,较宽的带角对应于较大的全息表面。另一个值得注意的观察是,在我们的$2D$双场论中不存在“限制/去限制”相变点。此外,我们观察到,在低温系统中,HEE的斜率相对于温度自由度(s)。在临界点附近检测到一级相变。

英文摘要:

The aim of the present letter is to find the holographic entanglement entropy (HEE) in 2D holographic superconductors (HSC). Indeed, it is possible to compute the exact form of this entropy due to an advantage of approximate solutions inside normal and superconducting phases with backreactions. By making the UV and IR limits applied to the integrals, an approximate expression for HEE is obtained. In case the software cannot calculate minimal surface integrals analytically, it offers the possibility to proceed with a numerical evaluation of the corresponding terms. We'll understand how the area formula incorporates the structure of the domain wall approximation. We see that HEE changes linearly with belt angle. It's due to the extensivity of this type of entropy and the emergent of an entropic force. We find that the wider belt angle corresponds to a larger holographic surface. Another remarkable observation is that no "confinement/deconfinement" phase transition point exists in our $2D$ dual field theory. Furthermore we observe that the slope of the HEE with respect to the temperature freedom(s) in low temperature system. A first order phase transition is detected near the critical point.

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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