KIP-Veröffentlichungen

Jahr 2019
Autor(en) C. -M. Schmied, T. Gasenzer and P. B. Blakie
Titel 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
Dokumentart Paper
Quelle 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  = { Physical Review A, arXiv:1904.13222 [cond-mat.quant-gas]},
  year     = {"2019"},
  volume   = {},
  pages    = {}
}
URL arXiv:1904.13222 [cond-mat.quant-gas]
Datei pdf
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