Novel transition dynamics of topological solitons

Kentaro Nishimura (KEK Theory Center, Tsukuba 305-0801, Japan; Research and Education Center for Natural Sciences, Keio University, 4-1-1 Hiyoshi, Yokohama, Kanagawa 223-8521, Japan) ; Noriyuki Sogabe (Department of Physics, University of Illinois, Chicago, Illinois 60607, USA; Quark Matter Research Center, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu, 073000, China)

Continuous phase transitions can be classified into ones characterized by local-order parameters and others that need additional topological constraints. The critical dynamics near the former transitions have been extensively studied, but the latter is less understood. We fill this gap in knowledge by studying the transition dynamics to a parity-breaking topological ground state called the chiral soliton lattice in quantum chromodynamics at finite temperature, baryon chemical potential, and an external magnetic field. We find a slowing down of the soliton’s translational motion as the critical magnetic field approaches, while the local relaxation rate to the solitonic state remains finite. The time required to converge to the stationary state strongly depends on the symmetry of the initial configuration, determining whether translational motion occurs during the dynamic process.

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Published on:
23 January 2024
Publisher:
APS
Published in:
Physical Review D , Volume 109 (2024)
Issue 1
DOI:
https://doi.org/10.1103/PhysRevD.109.014028
arXiv:
2304.01264
Copyrights:
Published by the American Physical Society
Licence:
CC-BY-4.0

Fulltext files: