Wednesday, March 20, 2013

1303.4469 (Kenichi Kasamatsu et al.)

D-brane solitons and boojums in field theory and Bose-Einstein
condensates
   [PDF]

Kenichi Kasamatsu, Hiromitsu Takeuchi, Muneto Nitta
In certain field theoretical models, composite solitons consisting of a domain wall and vortex lines attached to the wall have been referred to as D-brane solitons. We show that similar composite solitons can be realized in phase-separated two-component Bose-Einstein condensates. We discuss the similarities and differences between topological solitons in the Abelian-Higgs model and those in two-component Bose-Einstein condensates. Based on the formulation of gauge theory, we introduce the "boojum charge" to characterize the "D-brane soliton" in Bose-Einstein condensates.
View original: http://arxiv.org/abs/1303.4469

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