Interaction of half-quantized vortices in two-component Bose-Einstein condensates

Minoru Eto, Kenichi Kasamatsu, Muneto Nitta, Hiromitsu Takeuchi, Makoto Tsubota

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66 Citations (Scopus)

Abstract

We study the asymptotic interaction between two half-quantized vortices in two-component Bose-Einstein condensates. When two vortices in different components are placed at distance 2R, the leading order of the force between them is found to be (lnR/ξ-1/2)/R3, in contrast to 1/R between vortices placed in the same component. We derive it analytically using the Abrikosov ansatz and the profile functions of the vortices, confirmed numerically with the Gross-Pitaevskii model. We also find that the short-range cutoff of the intervortex potential linearly depends on the healing length.

Original languageEnglish
Article number063603
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume83
Issue number6
DOIs
Publication statusPublished - 2011 Jun 3

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Bose-Einstein condensates
vortices
interactions
healing
cut-off
profiles

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Interaction of half-quantized vortices in two-component Bose-Einstein condensates. / Eto, Minoru; Kasamatsu, Kenichi; Nitta, Muneto; Takeuchi, Hiromitsu; Tsubota, Makoto.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 83, No. 6, 063603, 03.06.2011.

Research output: Contribution to journalArticle

Eto, Minoru ; Kasamatsu, Kenichi ; Nitta, Muneto ; Takeuchi, Hiromitsu ; Tsubota, Makoto. / Interaction of half-quantized vortices in two-component Bose-Einstein condensates. In: Physical Review A - Atomic, Molecular, and Optical Physics. 2011 ; Vol. 83, No. 6.
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