Three-dimensional vortex structures in a rotating dipolar Bose-Einstein condensate

Abstract

We study the three-dimensional ground state vortex lattice structures of purely dipolar Bose-Einstein condensate (BEC). By using the mean-field model we obtain a stability diagram for the vortex states in purely dipolar BECs as a function of harmonic trap aspect ratio ($\lambda$) and dipole-dipole interaction strength ($D$) under rotation. Rotating the condensate within the unstable region leads to collapse, while in the stable region furnishes stable vortex lattices of dipolar BECs. We analyse stable vortex lattice structures by solving three-dimensional time dependent Gross-Pitaevskii equation in imaginary time. Further, the stability of vortex states is examined by evolution in real-time. We also investigate distribution of vortices in fully anisotropic trap by increasing eccentricity of the external trapping potential. Breaking up of the condensate in two parts has been observed with equally shared vortices on each when the trap is sufficiently weak and the rotation frequency is high.

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Cited by in corpus (13)

• Observation of vortices and vortex stripes in a dipolar Bose-Einstein condensate
• Vortex lattices in binary Bose-Einstein condensates with dipole-dipole interactions
• Excited states of two-dimensional solitons supported by the spin-orbit coupling and field-induced dipole-dipole repulsion
• OpenMP GNU and Intel Fortran programs for solving the time-dependent Gross-Pitaevskii equation
• Vortex Lattice Formation in Dipolar Bose-Einstein Condensates via Rotation of the Polarization
• Vortices in dipolar Bose-Einstein condensates
• Spatial separation of rotating binary Bose-Einstein condensate by tuning the dipolar interactions
• Fragmentation and correlations in a rotating Bose-Einstein condensate undergoing breakup
• Information entropy for a two-dimensional rotating Bose-Einstein condensate
• Vortex generation in stirred binary Bose-Einstein condensates
• Breakup of rotating asymmetric quartic-quadratic trapped condensates
• Quantum Landau damping in dipolar Bose-Einstein condensates
• Beyond-mean-field phases of rotating dipolar condensates