Bubble nucleation in a cold spin 1 gas
Abstract
Cold atomic gases offer the prospect of simulating the physics of the very early universe in the laboratory. In the condensate phase, the gas is described by a field theory with key features of high energy particle theory. This paper describes a three level system which undergoes a first order phase transition through the nucleation of bubbles. The theoretical investigation shows bubbles nucleating in two dimensions at non-zero temperature. There is good agreement between the bubble nucleation rates calculated from a Stochastic Projected Gross-Pitaevskii equation and from a non-perturbative instanton method. When an optical box trap is included in the simulations, the bubbles nucleate preferentially near the walls of the trap.
Cite
@article{arxiv.2212.03621,
title = {Bubble nucleation in a cold spin 1 gas},
author = {Thomas P. Billam and Kate Brown and Ian G. Moss},
journal= {arXiv preprint arXiv:2212.03621},
year = {2023}
}
Comments
17 pages, 7 figures, 2 tables. arXiv admin note: text overlap with arXiv:2108.05740