To detect the looped Bloch bands of Bose-Einstein condensates in optical lattices
arXiv:cond-mat/0307066 · doi:10.1016/j.physleta.2003.09.066
Abstract
A loop structure was predicted to exist in the Bloch bands of Bose-Einstein condensates in optical lattices recently in [{\it Wu and Niu, Phys. Rev. A {\bf 61}, 023402 (2000)}]. We discuss how to detect experimentally the looped band with an accelerating optical lattice through extensive and realistic numerical simulations. We find that the loop can be detected through observing either nonlinear Landau-Zener tunneling or destruction of Bloch oscillations.
5 pages, 4 figures, Submitted to Physics Letters A
References in corpus (10)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Realization of Bose-Einstein condensates in lower dimensions
- Bloch oscillations and mean-field effects of Bose-Einstein condensates in 1-D optical lattices
- Superfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential
- Band structure, elementary excitations, and stability of a Bose-Einstein condensate in a periodic potential
- Bloch Waves and Bloch Bands of Bose-Einstein Condensates in Optical Lattices
- Loop structure of the lowest Bloch band for a Bose-Einstein condensate
- A Quantum Tweezer for Atoms
- Photoionization of ultracold and Bose-Einstein condensed Rb atoms
- 1D model for the dynamics and expansion of elongated Bose-Einstein condensates
Cited by in corpus (5)
- Period doubling, two-color lattices, and the growth of swallowtails in Bose-Einstein condensates
- Sound speed of a Bose-Einstein condensate in an optical lattice
- Non-exponential tunneling due to mean-field induced swallowtails
- Loop Structure Stability of a Double-Well-Lattice BEC
- Exact nonlinear Bloch-state solutions for Bose-Einstein condensates in a periodic array of quantum wells