Creation and robustness of quantized vortices in a dipolar supersolid when crossing the superfluid-to-supersolid transition

Abstract

Experiments on dipolar Bose-Einstein condensates have recently reported the observation of supersolidity. Although quantized vortices constitute a key probe of superfluidity, their observability in dipolar supersolids is largely prevented by the strong density depletion caused by the formation of droplets. We present a novel approach to the nucleation of vortices and their observation, based on the quenching of the s-wave scattering length across the superfluid-supersolid transition. Starting from a slowly rotating, vortex-free, configuration in the superfluid phase, we predict vortex nucleation as the system enters the supersolid phase, due to the strong reduction of the critical angular velocity in the supersolid. Once a vortex is created, we show that it is robustly preserved when the condensate is brought back to the superfluid phase, where it may be readily observed.

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Cited by in corpus (13)

• Observation of vortices in a dipolar supersolid
• Vortices in dipolar Bose-Einstein condensates
• Ground-state stability and excitation spectrum of a one-dimensional dipolar supersolid
• Excitations of a two-dimensional supersolid
• Supersolid Stacks in Antidipolar Bose-Einstein Condensates
• Classical linear chain behavior from dipolar droplets to supersolids
• Induced supersolidity in a Dy-Er mixture
• Ground-state properties of dipolar Bose-Einstein condensates with spin-orbit coupling and quantum fluctuations
• Josephson vortices and persistent current in a double-ring supersolid system
• Roadmap to vortex nucleation below critical rotation frequency in a dipolar Bose-Einstein condensate
• Single-fluid model for rotating annular supersolids and its experimental implications
• Vorticity-Crystalline Order Coupling in Supersolids: Excitations and Re-entrant Phases
• Dynamical signatures of superfluidity and shear rigidity in different phases of a dipolar Bose-Einstein condensate