Drag of superfluid current in bilayer Bose systems
arXiv:cond-mat/0305290 · doi:10.1063/1.1808194
Abstract
An effect of nondissipative drag of a superfluid flow in a system of two Bose gases confined in two parallel quasi two-dimensional traps is studied. Using an approach based on introduction of density and phase operators we compute the drag current at zero and finite temperatures for arbitrary ratio of densities of the particles in the adjacent layers. We demonstrate that in a system of two ring-shape traps the "drag force" influences on the drag trap in the same way as an external magnetic flux influences on a superconducting ring. It allows to use the drag effect to control persistent current states in superfluids and opens a possibility for implementing a Bose analog of the superconducting Josephson flux qubit.
arXiv comment12 pages, 2 figures, new section is added, refs are added
References in corpus (15)
- Quantum state engineering with Josephson-junction devices
- Realization of Bose-Einstein condensates in lower dimensions
- Bose-Einstein condensation in quasi2D trapped gases
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
- Macroscopically ordered state in exciton system
- Evidence for a Goldstone Mode in a Double Layer Quantum Hall System
- Measurement of the angular momentum of a rotating Bose-Einstein condensate
- Observation of the scissors mode and superfluidity of a trapped Bose-Einstein condensed gas
- Observation of Quantized Hall Drag in a Strongly Correlated Bilayer Electron System
- Electron-drag effects in coupled electron systems
- Interferometric detection of a single vortex in a dilute Bose-Einstein condensate
- Direct observation of irrotational flow and evidence of superfluidity in a rotating Bose-Einstein condensate
- Dynamics of a Bose-Einstein Condensate near a Feshbach Resonance
- Feshbach resonances in a quasi-2D atomic gas
- Collective excitations of a two-dimensional interacting Bose gas in anti-trap and linear external potentials
Cited by in corpus (10)
- Non-dissipative drag of superflow in a two-component Bose gas
- Andreev-Bashkin effect in superfluid cold gases mixture
- Coupled superfluidity of binary Bose mixtures in two dimensions
- Drag effect and topological complexes in strongly interacting two-component lattice superfluids
- Critical currents and giant non-dissipative drag for superfluid electron-hole pairs in quantum Hall multilayers
- Detecting Entrainment in Fermi-Bose Mixtures
- Berezinskii-Kosterlitz-Thouless transitions in an easy-plane ferromagnetic superfluid
- Magnetic polarons in two-component hard core bosons
- Theoretical Analysis of Drag Resistance in Amorphous Thin Films Exhibiting Superconductor-Insulator-Transition
- Accumulation of spin-polarized states of charge carriers and a spintronic battery