Critical temperature of a Bose gas in an optical lattice
arXiv:0905.4783 · doi:10.1103/PhysRevA.80.031603
Abstract
We present theory for the critical temperature of a Bose gas in a combined harmonic lattice potential based on a mean-field description of the system. We develop practical expressions for the ideal-gas critical temperature, and corrections due to interactions, the finite-size effect, and the occupation of excited bands. We compare our expressions to numerical calculations and find excellent agreement over a wide parameter regime.
4 pages, 4 figures
References in corpus (8)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Single-atom density of states of an optical lattice
- Reentrant Phenomenon in Quantum Phase Diagram of Optical Boson Lattice
- Bose-Einstein condensation in an optical lattice
- Characteristics of Bose-Einstein condensation in an optical lattice
- Finite temperature theory of superfluid bosons in optical lattices
- Finite temperature coherence of the ideal Bose gas in an optical lattice