Universal scaling of the sigma field and net-protons from Langevin dynamics of model A
Universal scaling of the sigma field and net-protons from Langevin dynamics of model A
复制标题
模型 A 的 Langevin 动力学中西格玛场和净质子的通用标度
DOI：
10.1103/physrevc.99.064902
复制
发表时间：
2019
影响因子：
3.1
通讯作者：
Huichao Song
中科院分区：
文献类型：
--
作者：
Shanjin Wu;Zeming Wu;Huichao Song
在本文中，我们在模型 A 的 Langevin 动力学框架内研究了场和净质子的 Kibble-Zurek 标度。在确定特征标度并适当重新标定传统累积量后，我们构建了场的通用函数和临界状态下净质子的近似通用函数，这些函数对弛豫时间和所选的演化轨迹不敏感。此外，临界点附近净质子高阶累积量的振荡行为也被大大抑制，这些振荡行为与这些构造的Kibble-Zurek函数收敛到近似通用曲线。
In this paper, we investigate the Kibble-Zurek scaling of thefield and net-protons within the framework of Langevin dynamics of model A. After determining the characteristic scales, andand properly rescaling the traditional cumulants, we construct universal functions for thefield and approximate universal functions for net-protons in the critical regime, which are insensitive to the relaxation time and the chosen evolving trajectory. Besides, the oscillating behavior for the higher order cumulants of net-protons near the critical point is also drastically suppressed, which converge into approximate universal curves with these constructed Kibble-Zurek functions.