Dynamics of polar-core spin vortices in a ferromagnetic spin-1 Bose-Einstein condensate

Abstract

A ferromagnetic spin-1 condensate supports polar-core spin vortices (PCVs) in the easy-plane phase. We derive a model for the dynamics of these PCVs using a variational Lagrangian approach. The PCVs behave as massive charged particles interacting under the two dimensional Coulomb interaction, with the mass arising from interaction effects within the vortex core. We compare this model to numerical simulations of the spin-1 Gross-Pitaevskii equations and find semi-quantitative agreement. In addition, the numerical results suggest that the PCV core couples to spin waves, and this affects the PCV dynamics even far from the core. We identify areas of further research that could extend the model of PCV dynamics presented here.

arXiv comment10 pages, 6 figures

References in corpus (27)

• Spinor Bose Condensates in Optical Traps
• 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
• Observation of spinor dynamics in optically trapped 87Rb Bose-Einstein Condensates
• Critical Dynamics of Spontaneous Symmetry Breaking in a Homogeneous Bose gas
• Emergence of coherence in a uniform quasi-two-dimensional Bose gas
• Direct, Non-Destructive Imaging of Magnetization in a Spin-1 Bose Gas
• Quantum quenches in a spinor condensate
• Energy spectra of vortex distributions in two-dimensional quantum turbulence
• Kibble-Zurek mechanism in a quenched ferromagnetic Bose-Einstein condensate
• Dynamics of a quantum phase transition in a ferromagnetic Bose-Einstein condensate
• Half-Quantum Vortices in an Antiferromagnetic Spinor Bose-Einstein Condensate
• Vortex quantum creation and winding number scaling in a quenched spinor Bose gas
• Interaction of half-quantized vortices in two-component Bose-Einstein condensates
• Topological defect formation in quenched ferromagnetic Bose-Einstein condensates
• Universal coarsening dynamics of a quenched ferromagnetic spin-1 condensate
• Quantum Vortex in a Vectorial Bose-Einstein Condensate
• Hydrodynamic Description of Spin-1 Bose-Einstein Condensates
• 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
• Coarsening and thermalisation properties of a quenched ferromagnetic spin-1 condensate
• Sound-induced vortex interactions in a zero-temperature two-dimensional superfluid
• The Mass of a Spin Vortex in a Bose-Einstein Condensate
• Static structure factors for a spin-1 Bose-Einstein condensate
• Spin-superflow turbulence in spin-1 ferromagnetic spinor Bose-Einstein condensates

Cited by in corpus (16)

• Mass-driven vortex collisions in flat superfluids
• Coarsening dynamics of an isotropic ferromagnetic superfluid
• Nematic ordering dynamics of an anti-ferromagnetic spin-1 condensate
• Dark soliton-like magnetic domain walls in a two-dimensional ferromagnetic superfluid
• Anomalous phase ordering of a quenched ferromagnetic superfluid
• Spin-orbit coupled spin-1 Bose-Einstein condensate flow past an obstacle in the presence of a Zeeman field
• A damped point-vortex model for polar-core spin vortices in a ferromagnetic spin-1 Bose-Einstein condensate
• Properties of a nematic spin vortex in an antiferromagnetic spin-1 Bose-Einstein condensate
• Phase diagram of vortices in the polar phase of spin-1 Bose-Einstein condensates
• Experimentally accessible invariants encoded in interparticle correlations of harmonically trapped ultra-cold few-fermion mixtures
• Berezinskii-Kosterlitz-Thouless transitions in an easy-plane ferromagnetic superfluid
• Dynamics of a Nonequilibrium Discontinuous Quantum Phase Transition in a Spinor Bose-Einstein Condensate
• Core structure of static ferrodark solitons in a spin-1 Bose-Einstein condensate
• Collision dynamics of two-dimensional non-Abelian vortices
• Dynamics of Polar-Core Spin Vortices in Inhomogeneous Spin-1 Bose-Einstein Condensates
• Optical-plug-assisted spin vortex in a ${}^{87}$Rb dipolar spinor Bose-Einstein condensate