Quantum Elliptic Vortex in a Nematic-Spin Bose-Einstein Condensate

Abstract

We find a novel topological defect in a spin-nematic superfluid theoretically. A quantized vortex spontaneously breaks its axisymmetry, leading to an elliptic vortex in nematic-spin Bose-Einstein condensates with small positive quadratic Zeeman effect. The new vortex is considered the Joukowski transform of a conventional vortex. Its oblateness grows when the Zeeman length exceeds the spin healing length. This structure is sustained by balancing the hydrodynamic potential and the elasticity of a soliton connecting two spin spots, which are observable by in situ magnetization imaging. The theoretical analysis clearly defines the difference between half quantum vortices of the polar and antiferromagnetic phases in spin-1 condensates.

arXiv comment11 pages, 4 figures

References in corpus (47)

• Vortices in a Bose-Einstein Condensate
• Bose-Einstein condensation with internal degrees of freedom in alkali atom gases
• Spinor Bose-Einstein condensates
• Tachyon Dynamics in Open String Theory
• Observation of Half Quantum Vortices in an Exciton-Polariton Condensate
• Vortices in multicomponent Bose-Einstein condensates
• Spin Nematic Phase in S=1 Triangular Antiferromagnets
• Dense Matter in Compact Stars: Theoretical Developments and Observational Constraints
• Nematic spin fluid in the tetragonal phase of BaFe2As2
• Half-vortices in polariton condensates
• Domain walls of relative phase in two-component Bose-Einstein condensates
• Vortex molecules in coherently coupled two-component Bose-Einstein condensates
• Spin correlation and Discrete symmetry in Spinor Bose-Einstein Condensates
• How to create Alice string (half-quantum vortex) in a vector Bose-Einstein condensate
• Observation of half-quantum vortices in topological superfluid 3He
• Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate
• Interaction of half-quantized vortices in two-component Bose-Einstein condensates
• Monopole core instability and Alice rings in spinor Bose-Einstein condensates
• Topological defects and the superfluid transition of the $s=1$ spinor condensate in two dimensions
• Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid ${}^3$He
• Crossover between integer and fractional vortex lattices in coherently coupled two-component Bose-Einstein condensates
• Quantum Vortex in a Vectorial Bose-Einstein Condensate
• Quantum Spin Nematic States in Bose-Einstein Condensates
• Confinement and precession of vortex pairs in coherently coupled Bose-Einstein condensates
• Energetically stable singular vortex cores in an atomic spin-1 Bose-Einstein condensate
• Confinement of Half-quantized Vortices in Coherently Coupled Bose-Einstein Condensates: Simulating Quark Confinement in QCD
• Berezinskii-Kosterlitz-Thouless transition of two-component Bose mixtures with inter-component Josephson coupling
• Observation of wall-vortex composite defects in a spinor Bose-Einstein condensate
• Lifshitz transition in the double-core vortex in 3He-B
• Vortex dynamics in coherently coupled Bose-Einstein condensates
• The phase diagram of 2D polar condensates in a magnetic field
• Stability and internal structure of vortices in spin-1 Bose-Einstein condensates with conserved magnetization
• String monopoles, string walls, vortex-skyrmions and nexus objects in polar distorted B-phase of ${}^3$He
• Instability crossover of helical shear flow in segregated Bose-Einstein condensates
• Transverse instability and disintegration of domain wall of relative phase in coherently coupled two-component Bose-Einstein condensates
• Decay of the relative phase domain wall into confined vortex pairs: the case of a coherently coupled bosonic mixture
• The Vortex Phase Diagram of Rotating Superfluid ${}^3$He-B
• Boojums in Rotating Two-Component Bose-Einstein Condensates
• Stable core symmetries and confined textures for a vortex line in a spinor Bose-Einstein condensate
• Berezinskii-Kosterlitz-Thouless transition of spin-1 spinor Bose gases in the presence of the quadratic Zeeman effect
• Unconventional Vortices and Phase Transitions in Rapidly Rotating Superfluid ^{3}He
• Phase Diagram of Solitons in the Polar Phase of a Spin-1 Bose-Einstein Condensate
• Properties of a nematic spin vortex in an antiferromagnetic spin-1 Bose-Einstein condensate
• Half-Quantum Vortex Pair in Polar-distorted B Phase of Superfluid 3He in Aerogels
• One dimensional nexus objects, network of Kibble-Lazarides-Shafi string walls, and their spin dynamic response in polar distorted B-phase of ${}^3$He
• Effects of a magnetic field on vortex states in superfluid ${}^3$He-B
• Crossover from weak to strong quench in a spinor Bose-Einstein condensate

Cited by in corpus (9)

• Spin-Current Instability at a Magnetic Domain Wall in a Ferromagnetic Superfluid: a Generation Mechanism of Eccentric Fractional Skyrmions
• Stability and dynamics across magnetic phases of vortex-bright type excitations in spinor Bose-Einstein condensates
• GPU-accelerated solutions of the nonlinear Schrödinger equation for simulating 2D spinor BECs
• C-parity, magnetic monopoles and higher frequency gravitational waves
• Phase diagram of vortices in the polar phase of spin-1 Bose-Einstein condensates
• Topological interfaces crossed by defects and textures of continuous and discrete point group symmetries in spin-2 Bose-Einstein condensates
• Orbital moiré and quadrupolar triple-q physics in a triangular lattice
• Fibration, Nexus and Cosmological Composite Topological Defects in Uniaxially Disordered Superfluid ${}^3$He
• Dynamics of Polar-Core Spin Vortices in Inhomogeneous Spin-1 Bose-Einstein Condensates