Vortex dynamics of rotating dipolar Bose-Einstein condensates

Abstract

We study the influence of dipole-dipole interaction on the formation of vortices in a rotating dipolar Bose-Einstein condensate (BEC) of ${}^{52}$Cr and ${}^{164}$Dy atoms in quasi two-dimensional geometry. By numerically solving the corresponding time-dependent mean-field Gross-Pitaevskii equation, we show that the dipolar interaction enhances the number of vortices while a repulsive contact interaction increases the stability of the vortices. Further, an ordered vortex lattice of relatively large number of vortices is found in a strongly dipolar BEC.

15 pages, 10 figures, 1 table

References in corpus (16)

• Bose-Einstein condensation of chromium
• Bose-Einstein Condensation of Erbium
• Strong dipolar effects in a quantum ferrofluid
• Stabilizing a purely dipolar quantum gas against collapse
• Radial and angular rotons in trapped dipolar gases
• C programs for solving the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap
• Stability of quasi-two-dimensional Bose-Einstein condensates with dominant dipole-dipole interactions
• An efficient and spectrally accurate numerical method for computing dynamics of rotating Bose-Einstein condensates
• Dysprosium magneto-optical traps
• Ground-state structure and stability of dipolar condensates in anisotropic traps
• Vortices in dipolar condensates with dominant dipolar interactions
• Coherent collapse of a dipolar Bose-Einstein condensate for different trap geometries
• Thomas-Fermi versus one- and two-dimensional regimes of a trapped dipolar Bose-Einstein condensate
• Production of a chromium Bose-Einstein condensate
• Supersolid phases of dipolar bosons in optical lattices with a staggered flux
• Rotational properties of dipolar Bose-Einstein condensates confined in anisotropic harmonic potentials