Instability crossover of helical shear flow in segregated Bose-Einstein condensates
arXiv:1304.5143 · doi:10.1103/PhysRevA.87.063628
Abstract
We theoretically study the instability of helical shear flows, in which one fluid component flows along the vortex core of the other, in phase-separated two-component Bose-Einstein condensates at zero temperature. The helical shear flows are hydrodynamically classified into two regimes: (1) a helical vortex sheet, where the vorticity is localized on the cylindrical interface and the stability is described by an effective theory for ripple modes, and (2) a core-flow vortex with the vorticity distributed in the vicinity of the vortex core, where the instability phenomena are dominated only by the vortex-characteristic modes: Kelvin and varicose modes. The helical shear-flow instability shows remarkable competition among different types of instabilities in the crossover regime between the two regimes.
10 pages, 11 figures, v2 minor changes
References in corpus (13)
- Quantized Rotation of Atoms From Photons with Orbital Angular Momentum
- Generation of dark-bright soliton trains in superfluid-superfluid counterflow
- Quantum hydrodynamics
- Splitting Instability of a Multiply Charged Vortex in a Bose-Einstein Condensate
- Binary Quantum Turbulence Arising from Countersuperflow Instability in Two-Component Bose-Einstein Condensates
- Interface Tension of Bose-Einstein Condensates
- Countersuperflow instability in miscible two-component Bose-Einstein condensates
- Creating vortons and three-dimensional skyrmions from domain wall annihilation with stretched vortices in Bose-Einstein condensates
- Vortex pump for dilute Bose-Einstein condensates
- Tachyon Condensation Due to Domain-Wall Annihilation in Bose-Einstein Condensates
- Quantum pump for counter-circulations in a spinor Bose-Einstein condensate
- Continuous vortex pumping into a spinor condensate with magnetic fields
- Tachyon Condensation and Brane Annihilation in Bose-Einstein Condensates: Spontaneous Symmetry Breaking in Restricted Lower-dimensional Subspace
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- "Capillary'' structures in transversely trapped nonlinear optical beams
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- Universal description of massive point vortices and verification methods of vortex inertia in superfluids
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