Stationary states of Bose-Einstein condensed atoms rotating in an asymmetric ring potential
arXiv:2107.09291 · doi:10.1088/1361-6455/ac1647
Abstract
We consider a Bose-Einstein condensate, which is confined in a very tight toroidal/annular trap, in the presence of a potential, which breaks the axial symmetry of the Hamiltonian. We investigate the stationary states of the condensate, when its density distribution co-rotates with the symmetry-breaking potential. As the strength of the potential increases, we have a gradual transition from vortex excitation to solid-body-like motion. Of particular importance are states where the system is static and yet it has a nonzero current/circulation, which is a realization of persistent currents/reflectionless potentials.
arXiv comment8 pages, 5 figures
References in corpus (30)
- Realization of Bose-Einstein condensates in lower dimensions
- Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
- Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
- Experimental demonstration of painting arbitrary and dynamic potentials for Bose-Einstein condensates
- Hysteresis in a quantized, superfluid atomtronic circuit
- Bose-Einstein condensation in a circular waveguide
- Quantised supercurrent decay in an annular Bose-Einstein condensate
- Persistent currents in spinor condensates
- Time-averaged adiabatic ring potential for ultracold atoms
- A large magnetic storage ring for Bose-Einstein condensates
- A Storage Ring for Neutral Atoms
- Atomtronics-enabled Quantum Technologies
- Interferometric measurement of the current-phase relationship of a superfluid weak link
- Hypersonic Bose-Einstein Condensates in Accelerator Rings
- Optimal Persistent Currents for Interacting Bosons on a Ring with a Gauge Field
- Cold atom confinement in an all-optical dark ring trap
- Matter-wave interferometers using TAAP rings
- Producing superfluid circulation states using phase imprinting
- Moment of Inertia and Quadrupole Response Function of a Trapped Superfluid
- Nucleation in finite topological systems during continuous metastable quantum phase transitions
- Numerical solution of the stationary multicomponent nonlinear Schrödinger equation with a constraint on the angular momentum
- Anomalous rotational properties of Bose-Einstein condensates in asymmetric traps
- Beyond the Landau Criterion for Superfluidity
- Solitary waves of Bose-Einstein condensed atoms confined in finite rings
- Superfluid flow past an obstacle in annular Bose--Einstein condensates
- Bose-Einstein condensate confined in a 1D ring stirred with a rotating delta link
- Dynamical representations of constrained multicomponent nonlinear Schrödinger equations in arbitrary dimensions
- Current production in ring condensates with a weak link
- A numerical damped oscillator approach to constrained Schrödinger equations
- Parity Symmetry Breaking and Topological Phases in a Superfluid Ring