KIP publications

 
year 2019
author(s) C. -M. Schmied, T. Gasenzer and P. B. Blakie
title Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas
KIP-Nummer HD-KIP 19-34
KIP-Gruppe(n) F27
document type Paper
source arXiv:1904.13222 [cond-mat.quant-gas]
doi http://xxx.arxiv.org/abs/1904.13222
Abstract (en)

We consider the phase ordering dynamics of an isolated quasi-two-dimensional spin-1 Bose gas quenched into an easy-plane ferromagnetic phase. Preparing the initial system in an unmagnetized anti-ferromagnetic state the subsequent ordering involves both polar core and Mermin-Ho spin vortices, with the ratio between the different vortices controllable by the quench parameter. Ferromagnetic domain growth occurs as these vortices annihilate. The distinct dynamics of the two types of vortices means that the domain growth law is determined by two macroscopic length scales, violating the standard dynamic scaling hypothesis. Nevertheless we find that universality of the ordering process manifests in the decay laws for the spin vortices.

bibtex
@article{Schmied2019abm,
  author   = {Schmied, C. -M. and Gasenzer, T. and Blakie, P. B.},
  title    = {{Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas}},
  journal  = { arXiv:1904.13222 [cond-mat.quant-gas]},
  year     = {"2019"},
  volume   = {},
  pages    = {}
}
URL arXiv:1904.13222 [cond-mat.quant-gas]
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