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arXiv 1807.01099cond-mat.stat-mechhep-th
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扩散系统动力学相变的普适性

Universality in dynamical phase transitions of diffusive systems

Ohad Shpielberg, Takahiro Nemoto, João Caetano

摘要:

热力学相变中发生普遍性,微观细节变得无关紧要。的普遍性被捕获的奇异标度函数的热力学变量,其中的标度指数是由对称性和维数只。即使对于非平衡相变,普适性也可以持续。这意味着流体动力学方法可以捕获奇异的通用标度函数,即使远离平衡。特别是,我们显示这些结果的相变中的大偏差函数的电流在扩散系统的粒子-空穴对称性。对于这样的系统,我们发现的标度指数的通用功能,并显示它们是独立的微观细节以及边界条件。

英文摘要:

Universality, where microscopic details become irrelevant, takes place in thermodynamic phase transitions. The universality is captured by a singular scaling function of the thermodynamic variables, where the scaling exponents are determined by symmetries and dimensionality only. Universality can persist even for non-equilibrium phase transitions. It implies that a hydrodynamic approach can capture the singular universal scaling function, even far from equilibrium. In particular, we show these results for phase transitions in the large deviation function of the current in diffusive systems with particle-hole symmetry. For such systems, we find the scaling exponents of the universal function and show they are independent of microscopic details as well as boundary conditions.

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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