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Simulating cosmological supercooling with a cold-atom system

Lookup NU author(s): Dr Thomas BillamORCiD, Dr Kate Brown, Professor Ian MossORCiD

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This is the final published version of an article that has been published in its final definitive form by American Physical Society, 2020.

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Abstract

© 2020 American Physical Society.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.

Publication metadata

Author(s): Billam TP, Brown K, Moss IG

Publication type: Article

Publication status: Published

Journal: Physical Review A

Year: 2020

Volume: 102

Issue: 4

Online publication date: 22/10/2020

Acceptance date: 05/10/2020

Date deposited: 13/04/2021

ISSN (print): 2469-9926

ISSN (electronic): 2469-9934

Publisher: American Physical Society

URL: https://doi.org/10.1103/PhysRevA.102.043324

DOI: 10.1103/PhysRevA.102.043324

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