Properties of a nematic spin vortex in an antiferromagnetic spin-1 Bose-Einstein condensate
arXiv:2005.09203 · doi:10.1103/PhysRevA.102.023326
Abstract
A spin-1 condensate with antiferromagnetic interactions supports nematic spin vortices in the easy-plane polar phase. These vortices have a winding of the nematic director, with a core structure that depends on the quadratic Zeeman energy. We characterize the properties of the nematic spin vortex in a uniform quasi-two-dimensional system. We also obtain the vortex excitation spectrum and use it to quantify its stability against dissociating into two half-quantum vortices, finding a parameter regime where the nematic spin vortex is dynamically stable. These results are supported by full dynamical simulations.
arXiv comment10 pages, 6 figures
References in corpus (50)
- Theory of Phase Ordering Kinetics
- Spinor Bose Condensates in Optical Traps
- Optical Confinement of a Bose-Einstein Condensate
- Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
- Spinor Bose-Einstein condensates
- Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
- Mathematical theory and numerical methods for Bose-Einstein condensation
- Generation of dark-bright soliton trains in superfluid-superfluid counterflow
- Coreless vortex formation in a spinor Bose-Einstein condensate
- Dynamical Instability of a Doubly Quantized Vortex in a Bose-Einstein condensate
- Resonant control of spin dynamics in ultracold quantum gases by microwave dressing
- Dynamical Creation of Fractionalized Vortices and Vortex Lattices
- Dark-dark solitons and modulational instability in miscible, two-component Bose-Einstein condensates
- Observation of Topologically Stable 2D Skyrmions in an Antiferromagnetic Spinor Bose-Einstein Condensate
- How to create Alice string (half-quantum vortex) in a vector Bose-Einstein condensate
- Energy spectra of vortex distributions in two-dimensional quantum turbulence
- Amplification of Fluctuations in a Spinor Bose Einstein Condensate
- Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate
- Interaction of half-quantized vortices in two-component Bose-Einstein condensates
- Binary Quantum Turbulence Arising from Countersuperflow Instability in Two-Component Bose-Einstein Condensates
- Spin-orbital-angular-momentum coupled Bose-Einstein condensates
- Universal coarsening dynamics of a quenched ferromagnetic spin-1 condensate
- Crossover between Kelvin-Helmholtz and counter-superflow instabilities in two-component Bose-Einstein condensates
- Vortex stabilization in Bose-Einstein condensate of alkali atom gas
- Stability of multiquantum vortices in dilute Bose-Einstein condensates
- Energetically stable singular vortex cores in an atomic spin-1 Bose-Einstein condensate
- Collisional Dynamics of Half-Quantum Vortices in a Spinor Bose-Einstein Condensate
- Counterflow instability and turbulence in a spin-1 spinor Bose--Einstein condensate
- Short range inter-vortex interaction and interacting dynamics of half-quantized vortices in two-component Bose-Einstein condensates
- Spin nematic order in antiferromagnetic spinor condensates
- Observation of wall-vortex composite defects in a spinor Bose-Einstein condensate
- Energetic stability of coreless vortices in spin-1 Bose-Einstein condensates with conserved magnetization
- Critical spin superflow in a spinor Bose-Einstein condensate
- Emergence and scaling of spin turbulence in quenched antiferromagnetic spinor Bose-Einstein condensates
- Stratification of Moving Multicomponent Bose-Einstein Condensates
- Efficient and accurate methods for solving the time-dependent spin-1 Gross-Pitaevskii equation
- Coarsening dynamics driven by vortex-antivortex annihilation in ferromagnetic Bose-Einstein condensates
- Counter-flow instability of a quantum mixture of two superfluids
- Stability and internal structure of vortices in spin-1 Bose-Einstein condensates with conserved magnetization
- Nematic ordering dynamics of an anti-ferromagnetic spin-1 condensate
- Instability crossover of helical shear flow in segregated Bose-Einstein condensates
- Counter-rotating vortices in miscible two-component Bose-Einstein condensates
- Vortex splitting and phase separating instabilities of coreless vortices in F=1 spinor Bose-Einstein condensates
- Dynamics of polar-core spin vortices in a ferromagnetic spin-1 Bose-Einstein condensate
- Violation of single-length scaling dynamics via spin vortices in an isolated spin-1 Bose gas
- The Mass of a Spin Vortex in a Bose-Einstein Condensate
- Superfluidity of pure spin current in ultracold Bose gases
- Dynamics of a quenched spin-1 antiferromagnetic condensate in a harmonic trap
- An efficient finite-difference scheme for computation of electron states in free-standing and core-shell quantum wires
- An improved discretization of Schrodinger-like radial equations
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- Controlled Creation and Decay of Singly-Quantized Vortices in a Polar Magnetic Phase
- A damped point-vortex model for polar-core spin vortices in a ferromagnetic spin-1 Bose-Einstein condensate
- Stability and dynamics across magnetic phases of vortex-bright type excitations in spinor Bose-Einstein condensates
- Phase diagram of vortices in the polar phase of spin-1 Bose-Einstein condensates