A novel method to create a vortex in a Bose-Einstein condensate
arXiv:cond-mat/0202018 · doi:10.1103/PhysRevA.66.013617
Abstract
It has been shown that a vortex in a BEC with spin degrees of freedom can be created by manipulating with external magnetic fields. In the previous work, an optical plug along the vortex axis has been introduced to avoid Majorana flips, which take place when the external magnetic field vanishes along the vortex axis while it is created. In the present work, in contrast, we study the same scenario without introducing the optical plug. The magnetic field vanishes only in the center of the vortex at a certain moment of the evolution and hence we expect that the system will lose only a fraction of the atoms by Majorana flips even in the absence of an optical plug. Our conjecture is justified by numerically solving the Gross-Pitaevskii equation, where the full spinor degrees of freedom of the order parameter are properly taken into account. A significant simplification of the experimental realization of the scenario is attained by the omission of the optical plug.
8 pages, 11 figures
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Cited by in corpus (28)
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- Topological vortex formation in a Bose-Einstein condensate
- Creation of Dirac monopoles in spinor Bose-Einstein condensates
- Splitting of a doubly quantized vortex through intertwining in Bose-Einstein condensates
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- Dynamical evolution of a doubly-quantized vortex imprinted in a Bose-Einstein Condensate
- Dynamically stable multiply quantized vortices in dilute Bose-Einstein condensates
- Vortex pump for dilute Bose-Einstein condensates
- Splitting dynamics of giant vortices in dilute Bose-Einstein condensates
- Explicit expressions for the topological defects of spinor Bose-Einstein condensates
- Core sizes and dynamical instabilities of giant vortices in dilute Bose-Einstein condensates
- Spin-orbit coupled interferometry with ring-trapped Bose--Einstein condensates
- Ground-State Dirac Monopole
- Thermally induced instability of a doubly quantized vortex in a Bose-Einstein condensate
- Stability of coreless vortices in ferromagnetic spinor Bose-Einstein condensates
- Decay of multiply charged vortices at nonzero temperatures
- Quantum pump for counter-circulations in a spinor Bose-Einstein condensate
- Fast control of topological vortex formation in BEC by counter-diabatic driving
- Continuous vortex pumping into a spinor condensate with magnetic fields
- Decay of an isolated monopole into a Dirac monopole configuration
- Splitting of doubly quantized vortices in dilute Bose-Einstein condensates
- Counter-diabatic vortex pump in spinor Bose-Einstein condensates
- Topological Vortex Formation in BEC under Gravitational Field
- Vortex pump for Bose-Einstein condensates utilizing a time-averaged orbiting potential trap
- Instabilities of off-centered vortices in a Bose-Einstein condensate
- Condition for the Existence of Complex Modes in a Trapped Bose--Einstein Condensate with a Highly Quantized Vortex
- Evolution of an isolated monopole in a spin-1 Bose-Einstein condensate
- Fractional windings of the spinor condensates on a ring