Vortex formations from domain wall annihilations in two-component Bose-Einstein condensates

Hiromitsu Takeuch, Kenichi Kasamatsu, Muneto Nitta, Makoto Tsubota

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We theoretically study the vortex formation from the collision of the domain walls in phase-separated two-component Bose-Einstein condensates. The collision process mimics the tachyon condensation for the annihilation of D-brane and anti-D-brane in string theory. A pair annihilation leaves the quantized vortices with superflow along their core, namely superflowing cosmic strings. It is revealed that the line density and the core size of the vortices depend on the initial distance between the walls.

Original languageEnglish
Pages (from-to)243-249
Number of pages7
JournalJournal of Low Temperature Physics
Volume162
Issue number3-4
DOIs
Publication statusPublished - 2011 Feb

Keywords

  • Bose-Einstein condensates
  • D-brane

ASJC Scopus subject areas

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

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