Emergence of superfluid transport in a dynamical system of ultracold atoms
arXiv:cond-mat/0412549 · doi:10.1140/epjd/e2006-00226-8
Abstract
The dynamics of a Bose-Einstein condensate is studied theoretically in a combined periodic plus harmonic external potential. Different dynamical regimes of stable and unstable collective dipole and Bloch oscillations are analysed in terms of a quantum mechanical pendulum model. Nonlinear interactions are shown to counteract quantum-mechanical dephasing and lead to phase-coherent, superfluid transport.
References in corpus (24)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Formation of a Matter-Wave Bright Soliton
- Discrete Solitons and Breathers with Dilute Bose-Einstein Condensates
- Josephson Junction Arrays with Bose-Einstein Condensates
- Modulational instability in cigar shaped Bose-Einstein condensates in optical lattices
- Superfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential
- Dynamical Superfluid-Insulator Transition in a Chain of Weakly Coupled Bose-Einstein Condensates
- Superfluidity of Bose-Einstein Condensate in An Optical Lattice: Landau-Zener Tunneling and Dynamical Instability
- Strongly inhibited transport of a 1D Bose gas in a lattice
- Superfluid current disruption in a chain of weakly coupled Bose-Einstein Condensates
- Collisionally Induced Transport in Periodic Potentials
- Ultracold atoms confined in an optical lattice plus parabolic potential: a closed-form approach
- Insulating Behavior of a Trapped Ideal Fermi Gas
- Decay of a superfluid currents in a moving system of strongly interacting bosons
- Bragg Spectroscopy of ultracold atoms loaded in an optical lattice
- Superfluid-insulator transition in a moving system of interacting bosons
- Single-atom density of states of an optical lattice
- Bloch oscillations of cold atoms in optical lattices
- Confinement control by optical lattices
- Atomic Gases at Negative Kinetic Temperature
- Mean-field model for Josephson oscillation in a Bose-Einstein condensate on an one-dimensional optical trap
- Loss and revival of phase coherence in a Bose-Einstein condensate moving through an optical lattice
- Umklapp collisions and center of mass oscillation of a trapped Fermi gas
- Quantum transport of non-interacting Fermi gas in an optical lattice combined with harmonic trapping
Cited by in corpus (8)
- Creating artificial magnetic fields for cold atoms by photon-assisted tunneling
- Adiabatic Quantum Transport in a Spin Chain with a Moving Potential
- Quantum particle in a parabolic lattice in the presence of a gauge field
- Bose-Einstein condensation in an optical lattice: A perturbation approach
- Single-particle Analysis of Non-interacting Ultracold Bosons in Amplitude Modulated Parabolic Optical Lattice
- A significantly stable mode of the ultracold atomic wave packet in amplitude modulated parabolic optical lattices
- Real-Time Corrections to the Effective Potential
- Chirped Bloch-Harmonic oscillations in a parametrically forced optical lattice