Suppression of kelvon-induced decay of quantized vortices in trapped bose-einstein condensates

S. J. Rooney, P. B. Blakie, B. P. Anderson, A. S. Bradley

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study the Kelvin mode excitations on a vortex line in a three-dimensional trapped Bose-Einstein condensate at finite temperature. Our stochastic Gross-Pitaevskii simulations show that the activation of these modes can be suppressed by tightening the confinement along the direction of the vortex line, leading to a strong suppression in the vortex decay rate as the system enters a regime of two dimensional vortex dynamics. As the system approached the transition temperature we find that the vortex decay rate is strongly sensitive to dimensionality and temperature, observing a large enhancement for quasi-two-dimensional traps.

Original languageEnglish (US)
Title of host publicationInternational Quantum Electronics Conference, IQEC 2011
Pages1775-1776
Number of pages2
StatePublished - Dec 1 2011
EventInternational Quantum Electronics Conference, IQEC 2011 - Sydney, Australia
Duration: Aug 28 2011Sep 1 2011

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Other

OtherInternational Quantum Electronics Conference, IQEC 2011
CountryAustralia
CitySydney
Period8/28/119/1/11

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ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

Rooney, S. J., Blakie, P. B., Anderson, B. P., & Bradley, A. S. (2011). Suppression of kelvon-induced decay of quantized vortices in trapped bose-einstein condensates. In International Quantum Electronics Conference, IQEC 2011 (pp. 1775-1776). (Optics InfoBase Conference Papers).