Spontaneous vortex formation during the growth of a bose-einstein condensate

Matthew J. Davis, Ashton S. Bradley, Chad N. Weiler, Tyler W. Neely, David R. Scherer, Brian P. Anderson

Research output: Contribution to journalConference articlepeer-review

Abstract

We report on experiments and simulations of the growth of a Bose-Einstein condensate in which vortices are observed to form spontaneously in a non-rotating potential. Between 10% and 50% of experiments result in between one and three unambiguous vortex cores. We simulate a temperature quench of a Bose gas through the critical point using the stochastic Gross-Pitaevskii equation and find remarkable agreement with the experimental data. Faster cooling results in a higher probability of vortex formation, and we interpret these results in light of the Kibble-Zurek scenario for the formation of topological defects in continuous phase transitions.

Original languageEnglish (US)
JournalOptics InfoBase Conference Papers
StatePublished - Jan 1 2007
EventQuantum-Atom Optics Downunder, QAO 2007 - Wollongong, Australia
Duration: Dec 3 2007Dec 3 2007

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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