Connection of vortices between spatially different phases in two-component bose-einstein condensates

Kenichi Kasamatsu, Hiromitsu Takeuchi, Muneto Nitta, Makoto Tsubota

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study interfacial topological defects called boojums, a vortex ending or a connecting point of two kinds of vortex cores, in rotating two-component Bose-Einstein condensates. First, we show that the boojum exists at a vortex ending that connects to the interface of the strongly phase-separated condensates. Next, we study various boojums appearing between two phases characterized by different vortex structures, where the intercomponent s-wave scattering lengths are spatially varied. Using three-dimensional simulations of the Gross-Pitaevskii equations, we reveal the detailed structure of the boojums by visualizing its density distribution and effective superflow vorticity.

Original languageEnglish
Pages (from-to)99-104
Number of pages6
JournalJournal of Low Temperature Physics
Volume158
Issue number1-2
DOIs
Publication statusPublished - 2010 Jan

Fingerprint

Bose-Einstein condensates
Vortex flow
vortices
wave scattering
Vorticity
vorticity
condensates
density distribution
Scattering
Defects
defects
simulation

Keywords

  • Bose-Einstein condensate
  • Multicomponent
  • Topological defect
  • Vortex

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

Connection of vortices between spatially different phases in two-component bose-einstein condensates. / Kasamatsu, Kenichi; Takeuchi, Hiromitsu; Nitta, Muneto; Tsubota, Makoto.

In: Journal of Low Temperature Physics, Vol. 158, No. 1-2, 01.2010, p. 99-104.

Research output: Contribution to journalArticle

Kasamatsu, Kenichi ; Takeuchi, Hiromitsu ; Nitta, Muneto ; Tsubota, Makoto. / Connection of vortices between spatially different phases in two-component bose-einstein condensates. In: Journal of Low Temperature Physics. 2010 ; Vol. 158, No. 1-2. pp. 99-104.
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