Strongly anisotropic vortices in dipolar quantum droplets

Abstract

We construct strongly anisotropic quantum droplets with embedded vorticity in the 3D space, with mutually perpendicular vortex axis and polarization of atomic magnetic moments. Stability of these anisotropic vortex quantum droplets (AVQDs) is verified by means of systematic simulations. Their stability area is identified in the parametric plane of the total atom number and scattering length of the contact interactions. We also construct vortex-antivortex-vortex bound states and find their stability region in the parameter space. The application of a torque perpendicular to the vorticity axis gives rise to robust intrinsic oscillations or rotation of the AVQDs. The effect of three-body losses on the AVQD stability is considered too. The results show that the AVQDs can retain the topological structure (vorticity) for a sufficiently long time if the scattering length exceeds a critical value.

7 pages, 6 figures, and 80 References, Physical Review Letters, in press

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Cited by in corpus (6)

• Observation of vortices in a dipolar supersolid
• The bulk modulus of three-dimensional quantum droplets
• Tightly bound solitons and vortices in three-dimensional bosonic condensates with the electromagnetically-induced gravity
• Roadmap to vortex nucleation below critical rotation frequency in a dipolar Bose-Einstein condensate
• Localized States in Dipolar Bose-Einstein Condensates: To be or not to be of second order
• Static and dynamical properties of quadrupolar quantum droplets in quasi-2D condensates