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 19-108
KIP-Gruppe(n) F17,F27
Dokumentart Paper
Quelle Physical Review A 100, 033603 (2019)
doi doi.org/10.1103/PhysRevA.100.033603
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   = {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},
  journal  = {Physical Review A},
  year     = {2019},
  volume   = {100},
  number   = {3},
  pages    = {033603},
  month    = {September},
  doi      = {doi.org/10.1103/PhysRevA.100.033603}
}
Beispielbild
URL arXiv:1904.13222 [cond-mat.quant-gas]
KIP - Bibliothek
Im Neuenheimer Feld 227
Raum 3.402
69120 Heidelberg