标题： 用冷原子系统模拟宇宙超冷却现象 显示英文标题

标题： Simulating cosmological supercooling with a cold atom system

摘要： 我们对一种类比于早期宇宙相变的一维两分量玻色气体的过冷态进行了分析。 我们证明了组分间相对相位的热涨落特征类似于一个相对论性热系统。 此外，我们展示了两种不同的亚稳态衰变方法的等价性：即非微扰的热瞬子计算和随机Gross-Pitaevskii模拟。 显示英文摘要

摘要： We perform an analysis of the supercooled state in an analogue to an early universe phase transition based on a one dimensional, two-component Bose gas. We demonstrate that the thermal fluctuations in the relative phase between the components are characteristic of a relativistic thermal system. Furthermore, we demonstrate the equivalence of two different approaches to the decay of the metastable state: specifically a non-perturbative thermal instanton calculation and a stochastic Gross--Pitaevskii simulation.