2012/03/31 by Muneto Nitta, Kenichi Kasamatsu, Makoto Tsubota +1
Physics and Astronomy · #Annihilation #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Component (thermodynamics) #Condensed matter physics #Domain (mathematical analysis) #Domain wall (magnetism) #Geometry #Magnetic field #Mechanics #Order (exchange) #Phase (matter) #Physics #Physics of Superconductivity and Magnetism #Plane (geometry) #Quantum mechanics #Skyrmion #Strong Light-Matter Interactions #Superfluidity #Vortex #Vorticity #astro-ph.CO #cond-mat.quant-gas #hep-ph #hep-th
paper · pdf · doi:10.1103/physreva.85.053639
published as Phys.Rev.A85:053639,2012 · 12 pages, 13 figures, published version
openalex publication_date 2012/05/25 · arxiv created 2012/05/31 · arxiv updated 2012/06/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study a mechanism to create a vorton or three-dimensional skyrmion in phase-separated two-component BECs with the order parameters \ensuremathΨ1 and \ensuremathΨ2 of the two condensates. We consider a pair of a domain wall (brane) and an antidomain wall (antibrane) stretched by vortices (strings), where the \ensuremathΨ2 component with a vortex winding is sandwiched by two domains of the \ensuremathΨ1 component. The vortons appear when the domain wall pair annihilates. Experimentally, this can be realized by preparing the phase separation in the order \ensuremathΨ1, \ensuremathΨ2, and \ensuremathΨ1 components, where the nodal plane of a dark soliton in \ensuremathΨ1 component is filled with the \ensuremathΨ2 component with vorticity. By selectively removing the filling \ensuremathΨ2 component gradually with a resonant laser beam, the collision of the brane and antibrane can be made, creating vortons.