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arXiv 2003.12987hep-thcond-mat.quant-gascond-mat.str-el
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全息沸腾与超越局部平衡的广义热力学描述

Holographic boiling and generalized thermodynamic description beyond local equilibrium

Xin Li, Zhang-Yu Nie, Yu Tian

摘要:

通过调整一个简单的双组分全息超流模型,我们可以在探针极限下观察到两个超流相之间的一级相变。受潜在景观讨论的启发,一阶相变系统提供了一个直观的物理图像。我们强调,全息完美地提供了一个广义的热力学描述某些强耦合系统,即使在局部平衡,这使我们能够仔细研究一阶相变下的系统的畴壁结构,无论是静态或实时动态。我们用数值方法构造了一维畴壁组态,并由广义巨势计算了畴壁的表面张力。我们还数值模拟了2D气泡成核过程(全息沸腾)的实时动态。当气泡半径足够大时,1D畴壁的表面张力很好地匹配2D气泡成核过程的最终状态。

英文摘要:

Tuning a very simple two-component holographic superfluid model, we can have a first order phase transition between two superfluid phases in the probe limit. Inspired by the potential landscape discussion, an intuitive physical picture for systems with first order phase transitions is provided. We stress that holography perfectly offers a generalized thermodynamic description of certain strongly coupled systems even out of local equilibrium, which enables us to carefully study domain wall structures of the system under first order phase transitions, either static or in real time dynamics. We numerically construct the 1D domain wall configuration and compute the surface tension of the domain wall from its generalized grand potential. We also numerically simulate the real time dynamics of a 2D bubble nucleation process (holographic boiling). The surface tension of the 1D domain wall nicely matches the final state of the 2D bubble nucleation process when the bubble radius is large enough.

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