Simulating cosmological supercooling with a cold-atom system

被引：20

作者：

Billam, Thomas P. ^{[1
]}

Brown, Kate ^{[2
]}

Moss, Ian G. ^{[2
]}

机构：

[1] Newcastle Univ, Joint Quantum Ctr Durham Newcastle, Sch Math Stat & Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

[2] Newcastle Univ, Sch Math Stat & Phys, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England

来源：

PHYSICAL REVIEW A | 2020年 / 102卷 / 04期

基金：

英国科学技术设施理事会; 英国工程与自然科学研究理事会;

关键词：

UNIVERSAL DYNAMICS; FALSE VACUUM; FATE;

D O I：

10.1103/PhysRevA.102.043324

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We perform an analysis of the supercooled state in an analog 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 nonperturbative thermal instanton calculation and a stochastic Gross-Pitaevskii simulation.

引用

页数：6

共 43 条

[1]

Abed M. Gutierezz, ARXIV200606289

[2]

Barceló C, 2005, LIVING REV RELATIV, V8, DOI [10.12942/lrr-2005-12, 10.12942/lrr-2011-3]

[3] Simulating seeded vacuum decay in a cold atom system [J].