论文标题
非高斯流体动力波动的演变
Evolution of Non-Gaussian Hydrodynamic Fluctuations
论文作者
论文摘要
在使用非高斯波动搜索QCD临界点的背景下，我们在热波动的幅度下，在系统扩张的主要范围内获得了非高斯累积液的进化方程。我们开发了一种示意技术，其中的主要顺序贡献由树图给出。我们引入了一个用于多点相关器的Wigner变换，并为非线性随机扩散与乘法噪声的问题得出了三分和四点Wigner函数的演化方程。
In the context of the search for the QCD critical point using non-Gaussian fluctuations, we obtain the evolution equations for non-Gaussian cumulants to the leading order of the systematic expansion in the magnitude of thermal fluctuations. We develop a diagrammatic technique in which the leading order contributions are given by tree diagrams. We introduce a Wigner transform for multipoint correlators and derive the evolution equations for three- and four-point Wigner functions for the problem of nonlinear stochastic diffusion with multiplicative noise.
