Static and dynamic properties of heavily doped quantum vortices

Abstract

Quantum vortices in superfluids may capture matter and deposit it inside their core. By doping vortices with foreign particles one can effectively visualize them and study experimentally. To acquire a better understanding of the interaction of quantum vortices with matter and clarify the details of recent experiments properties of doped vortices are investigated here theoretically in the regimes where the doping mass becomes close to the total mass of superfluid particles forming a vortex. Such formations are dynamically stable and, possessing both vorticity and enhanced inertia, demonstrate properties which are different from the pure vortex case. The goal of this paper is to define and investigate the universal aspects of a heavily doped vortex behavior which can be realized in different types of quantum mixtures. The proposed 3D model is based on a system of coupled semiclassical matter wave equations which are solved numerically in a wide range of physical parameters. The size, geometry, solubility and binding energy of dopants in different regimes are discussed. A coupled motion of a vortex-dopant complex and decoupling conditions are studied. The reconnection of vortices, taken as an example of a fundamental process responsible for the evolution of a quantum turbulent state, is modeled to illustrate the difference between the light and heavy doping cases.

References in corpus (20)

• Vortices in a Bose-Einstein Condensate
• Preparing Topological States of a Bose-Einstein Condensate
• Observation of Feshbach resonances between two different atomic species
• Characterization of reconnecting vortices in superfluid helium
• Quantum hydrodynamics
• Spin textures in rotating two-component Bose-Einstein condensates
• Confinement and precession of vortex pairs in coherently coupled Bose-Einstein condensates
• Dissipative dynamics of superfluid vortices at non-zero temperatures
• Excimers He2* as Tracers of Quantum Turbulence in 4He in the T=0 Limit
• Motion of an object through a dilute quantum fluid
• Solitary wave complexes in two-component mixture condensates
• Vortex arrays in nanoscopic superfluid helium droplets
• Probing vortices in 4He nanodroplets
• Dark-Bright Solitons in a Superfluid Bose-Fermi Mixture
• Structure and dynamics of a rotating superfluid Bose-Fermi mixture
• Monopole Oscillations and Dampings in Boson and Fermion Mixture in the Time-Dependent Gross-Pitaevskii and Vlasov Equations
• Vortex arrays in a rotating superfluid He-4 nanocylinder
• Inelastic scattering of xenon atoms by quantized vortices in superfluids
• Turbulence in quantum fluids
• Vortex Splitting in Subcritical Nonlinear Schrodinger Equation

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