Spontaneous Symmetry Breaking of Vortex Number in Binary Alternating Current Countersuperflow

Fuente: arXiv
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Autores principales: Yang, Wei-can, Tsubota, Makoto, Zeng, Hua-bi
Formato: Preprint
Publicado: 2023
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author Yang, Wei-can
Tsubota, Makoto
Zeng, Hua-bi
author_facet Yang, Wei-can
Tsubota, Makoto
Zeng, Hua-bi
contents In binary superfluid counterflow systems, vortex nucleation arises as a consequence of hydrodynamic instabilities when the coupling coefficient and counterflow velocity exceed the critical value. When dealing with two identical components, one might naturally anticipate that the number of vortices generated would remain equal. However, through the numerical experiments of the holographic model and the Gross-Pitaevskii equation, our investigation has unveiled a remarkable phenomenon: in Alternating Current counterflow systems, once the coupling coefficient and frequency exceed certain critical values, a surprising symmetry-breaking phenomenon occurs. This results in an asymmetry in the number of vortices in the two components. We establish that this phenomenon represents a novel continuous phase transition, which, as indicated by the phase diagram, is exclusively observable in Alternating Current counterflow. We provide an explanation for this intriguing phenomenon through soliton structures, thereby uncovering the complex and unique characteristics of quantum fluid instabilities and their rich phenomena.
format Preprint
id arxiv_https___arxiv_org_abs_2311_03418
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Spontaneous Symmetry Breaking of Vortex Number in Binary Alternating Current Countersuperflow
Yang, Wei-can
Tsubota, Makoto
Zeng, Hua-bi
Quantum Gases
High Energy Physics - Theory
In binary superfluid counterflow systems, vortex nucleation arises as a consequence of hydrodynamic instabilities when the coupling coefficient and counterflow velocity exceed the critical value. When dealing with two identical components, one might naturally anticipate that the number of vortices generated would remain equal. However, through the numerical experiments of the holographic model and the Gross-Pitaevskii equation, our investigation has unveiled a remarkable phenomenon: in Alternating Current counterflow systems, once the coupling coefficient and frequency exceed certain critical values, a surprising symmetry-breaking phenomenon occurs. This results in an asymmetry in the number of vortices in the two components. We establish that this phenomenon represents a novel continuous phase transition, which, as indicated by the phase diagram, is exclusively observable in Alternating Current counterflow. We provide an explanation for this intriguing phenomenon through soliton structures, thereby uncovering the complex and unique characteristics of quantum fluid instabilities and their rich phenomena.
title Spontaneous Symmetry Breaking of Vortex Number in Binary Alternating Current Countersuperflow
topic Quantum Gases
High Energy Physics - Theory
url https://arxiv.org/abs/2311.03418