Self-trapping of Bose-Einstein condensates expanding into shallow optical lattices
arXiv:0804.2068 · doi:10.1103/PhysRevA.77.063607
Abstract
We observe a sudden breakdown of the transport of a strongly repulsive Bose-Einstein condensate through a shallow optical lattice of finite width. We are able to attribute this behavior to the development of a self-trapped state by using accurate numerical methods and an analytical description in terms of nonlinear Bloch waves. The dependence of the breakdown on the lattice depth and the interaction strength is investigated. We show that it is possible to prohibit the self-trapping by applying a constant offset potential to the lattice region. Furthermore, we observe the disappearance of the self-trapped state after a finite time as a result of the revived expansion of the condensate through the lattice. This revived expansion is due to the finite width of the lattice.
7 pages, 5 figures, RevTeX4. Published version. Changed title, minor clarifications, added two references, also added arXiv ids for most references
References in corpus (30)
- Theory of Bose-Einstein condensation in trapped gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Formation and Propagation of Matter Wave Soliton Trains
- Dark Solitons in Bose-Einstein Condensates
- Discrete Solitons and Breathers with Dilute Bose-Einstein Condensates
- Josephson Junction Arrays with Bose-Einstein Condensates
- Regimes of quantum degeneracy in trapped 1D gases
- Numerical Solution of the Gross-Pitaevskii Equation for Bose-Einstein Condensation
- Bloch oscillations and mean-field effects of Bose-Einstein condensates in 1-D optical lattices
- Landau and Dynamical Instabilities of the Superflow of Bose-Einstein Condensates in Optical Lattices
- Superfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential
- Bose-Einstein condensates in standing waves: The cubic nonlinear Schroedinger equation with a periodic potential
- Observation of dynamical instability for a Bose-Einstein condensate in a moving 1D optical lattice
- Superfluidity of Bose-Einstein Condensate in An Optical Lattice: Landau-Zener Tunneling and Dynamical Instability
- Nonlinear Self-Trapping of Matter Waves in Periodic Potentials
- Atomtronics: ultracold atom analogs of electronic devices
- Bose Einstein Condensate in a Box
- Dynamics of dark solitons in elongated Bose-Einstein condensates
- Experimental properties of Bose-Einstein condensates in 1D optical lattices: Bloch oscillations, Landau-Zener tunneling and mean-field effects
- Band structure, elementary excitations, and stability of a Bose-Einstein condensate in a periodic potential
- Physics with Coherent Matter Waves
- A Single Atom Transistor in a 1D Optical Lattice
- Creation of gap solitons in Bose-Einstein condensates
- Loop structure of the lowest Bloch band for a Bose-Einstein condensate
- Unstable regimes for a Bose-Einstein condensate in an optical lattice
- Phase-slip induced dissipation in an atomic Bose-Hubbard system
- Dark soliton creation in Bose-Einstein condensates
- Self-trapping of Bose-Einstein condensates in optical lattices
- Interference of a Bose-Einstein condensate in a hard-wall trap: Formation of vorticity
- Deformation of dark solitons in inhomogeneous Bose-Einstein condensates
Cited by in corpus (7)
- Mathematical theory and numerical methods for Bose-Einstein condensation
- Effects of interaction on the diffusion of atomic matter waves in one-dimensional quasi-periodic potentials
- Symmetry Breaking and Self-trapping of a Dipolar Bose-Einstein Condensate in a Double-well Potential
- Non-linear mixing of Bogoliubov modes in a bosonic Josephson junction
- Self-trapping of a binary Bose-Einstein condensate induced by interspecies interaction
- Expansion of strongly interacting dipolar bosons in 1D optical lattices
- Mathematical Models and Numerical Methods for Bose-Einstein Condensation