Local vortex nucleation and the surface mode spectrum of large condensates

Abstract

A combination of analytical and numerical approaches obtains the complete dispersion curve for surface excitations in a condensate held in a plane linear potential. This improvement on previous approximate results yields an accurate formula for the local Landau critical velocity for vortex nucleation at the surface of a sufficiently large condensate, which agrees very well with recent experiments. The dispersion curve for surface modes at a hard wall potential is also presented, for contrast.

4 pages, 2 figures, 1 table

References in corpus (1)

• Stationary states of a rotating Bose-Einstein condensate: routes to vortex nucleation

Cited by in corpus (35)

• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Quantised supercurrent decay in an annular Bose-Einstein condensate
• Nonlinear dynamics for vortex lattice formation in a rotating Bose-Einstein condensate
• The nucleation, growth and stabilization of vortex lattices
• Multiple dark-bright solitons in atomic Bose-Einstein condensates
• Critical Rotation of an Annular Superfluid Bose Gas
• Vortices near surfaces of Bose-Einstein condensates
• Dissipative flow and vortex shedding in the Painlevé boundary layer of a Bose Einstein condensate
• Dynamical instability of a condensate induced by a rotating thermal gas
• Critical velocity for a toroidal Bose-Einstein condensate flowing through a barrier
• Vortex nucleation in Bose-Einstein condensates in time-dependent traps
• Surface modes and vortex formation in dilute Bose-Einstein condensates at finite temperatures
• Dynamic and Energetic Stabilization of Persistent Currents in Bose-Einstein Condensates
• Superfluid flow past an obstacle in annular Bose--Einstein condensates
• Critical velocities in two-component superfluid Bose gases
• Persistent currents in coherently coupled Bose-Einstein condensates in a ring trap
• Displaced dynamics of binary mixtures in linear and nonlinear optical lattices
• Classification of Dark Solitons via Topological Vector Potentials
• Mean-field yrast spectrum and persistent currents in a two-component Bose gas with interaction asymmetry
• Anomalous hydrodynamics and "normal" fluids in rapidly rotating BECs
• Vortex Dynamics Near the Surface of a Bose-Einstein Condensate
• Excitations at the border of a condensate
• Multi-vortex crystal lattices in Bose-Einstein Condensates with a rotating trap
• Stability Criterion for Superfluidity based on the Density Spectral Function
• Quantum interface unbinding transitions
• Exact surface-wave spectrum of a dilute quantum liquid
• Wave patterns generated by a flow of two-component Bose-Einstein condensate with spin-orbit interaction past a localized obstacle
• The topological phase of bright solitons
• Phase Characters of Optical Dark Solitons with the Third-order Dispersion and Delayed Nonlinear Response
• Vortex nucleation through edge states in finite Bose-Einstein condensates
• Anomalous minimization for critical velocity of superflow along a step potential
• Dynamics of quantum vortices at finite temperature
• Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas
• Vortex nucleation in rotating BEC: the role of the boundary condition for the order parameter
• Weakly Nonlinear Analysis of Vortex Formation in a Dissipative Variant of the Gross-Pitaevskii Equation