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Simulating cosmological supercooling with a cold-atom system

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



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

For re-use rights please refer to the publisher's terms and conditions.


© 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


DOI: 10.1103/PhysRevA.102.043324


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