Bubble nucleation in a cold spin 1 gas
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...
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| Veröffentlicht in: | New journal of physics 2023-04, Vol.25 (4), p.43028 |
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| creator | Billam, Thomas P Brown, Kate Moss, Ian G |
| description | 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. |
| doi_str_mv | 10.1088/1367-2630/accca2 |
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Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. This work is published under http://creativecommons.org/licenses/by/4.0 (the “License”). 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| subjects | Approximation Bubbles Cold cold atoms condensed matter physics cosmology Field theory Gases Gravitational waves high energy physics Instantons Magnetic fields Nucleation Particle theory Phase transitions Physics quantum gases Simulation stochastic Temperature vacuum decay |
| title | Bubble nucleation in a cold spin 1 gas |
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