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Journal of Low Temperature Physics

, Volume 162, Issue 3–4, pp 243–249 | Cite as

Vortex Formations from Domain Wall Annihilations in Two-Component Bose-Einstein Condensates

  • Hiromitsu Takeuch
  • Kenichi Kasamatsu
  • Muneto Nitta
  • Makoto Tsubota
Article

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.

Keywords

Bose-Einstein condensates D-brane 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Hiromitsu Takeuch
    • 1
  • Kenichi Kasamatsu
    • 2
  • Muneto Nitta
    • 3
  • Makoto Tsubota
    • 1
  1. 1.Department of PhysicsOsaka City UniversitySumiyoshi-Ku, OsakaJapan
  2. 2.Department of PhysicsKinki UniversityHigashi-Osaka, OsakaJapan
  3. 3.Department of Physics, and Research and Education Center for Natural SciencesKeio UniversityHiyoshi 4-1-1, YokohamaJapan

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