Quantum phases in an optical lattice
By D. Oosten, P. Straten, H. Stoof. 2000
371 citations recorded by the source corpus.
We present the zero-temperature phase diagram of bosonic atoms in an optical lattice, using two different mean-field approaches. The phase diagram consists of various insulating phases and a superfluid phase. We explore the nature of the insulating phase by calculating both the quasiparticle and quasihole dispersion relation. We also determine the parameters of our single band Bose-Hubbard model in terms of the microscopic parameters of the atoms in the optical lattice.
Subfields: Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/a65b5e78e6c242f126c4ab241185112ef550bbf2
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In Atomic and Molecular Physics, and Optics
- Andrew A. Houck
- Jens Koch
- W. Shanks
- Devin Underwood
- P. Soltan-Panahi
- Kai Bongs
- Klaus Sengstock
- Steven M. Girvin
Citations in the corpus
- Ultracold quantum gases in triangular optical lattices (2009, methodology): “The locations of the kinks fit well to the critical values of the Hubbard parameter ηn c for the transition to an MI with occupation number n derived from a mean-field model [58].”
- Low-Disorder Microwave Cavity Lattices for Quantum Simulation with Photons (2012, methodology): “Mean field calculations are commonly used to reduce the computational difficulties of many body calculations [95, 101, 102].”
- Probing superfluids in optical lattices by momentum-resolved Bragg spectroscopy (2010, neutral): “We compare our data with a Bogoliubov-type approximation in the Bose–Hubbard framewor”