Strongly anisotropic vortices in dipolar quantum droplets
arXiv (Cornell University)(2023)
Abstract
We construct strongly anisotropic quantum droplets with embedded vorticity in the 3D space, with mutually perpendicular vortex axis and polarization of the 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 contact interactions. The application of torque perpendicular to the vorticity axis gives rise to robust intrinsic oscillations or rotation of the AVQDs. Collisions between slowly and fast moving AVQDs give rise, respectively, to the elastic outcome or merger. Finally, we construct stable vortex-antivortex-vortex bound states and find their stability regions in the parameter space.
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Key words
anisotropic vortices,dipolar,quantum
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