论文标题
流体动力学的非宇宙性
Non-universality of hydrodynamics
论文作者
论文摘要
我们使用Schwinger-keldysh有效的田间理论研究了随机相互作用对流体动力相关函数的影响。我们确定了在经典构成关系中不可见的新的“随机运输系数”，但仍会通过循环校正影响流体动力相关函数的后期行为。这些结果表明，即使在波动流体动力学的框架内，经典运输系数也不提供长距离，延迟相关性的普遍表征。
We investigate the effects of stochastic interactions on hydrodynamic correlation functions using the Schwinger-Keldysh effective field theory. We identify new "stochastic transport coefficients" that are invisible in the classical constitutive relations, but nonetheless affect the late-time behaviour of hydrodynamic correlation functions through loop corrections. These results indicate that classical transport coefficients do not provide a universal characterisation of long-distance, late-time correlations even within the framework of fluctuating hydrodynamics.
