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Cazalilla MA, Ho AF, Giamarchi T. Two-component Fermi gas on internal-state-dependent optical lattices. Phys Rev Lett. 2005;95(22):226402doi: 10.1103/PhysRevLett.95.226402.
Cazalilla, M. A., Ho, A. F., & Giamarchi, T. (2005). Two-component Fermi gas on internal-state-dependent optical lattices. Physical review letters, 95(22), 226402. https://doi.org/10.1103/PhysRevLett.95.226402
Cazalilla, M A, et al. "Two-component Fermi gas on internal-state-dependent optical lattices." Physical review letters vol. 95,22 (2005): 226402. doi: https://doi.org/10.1103/PhysRevLett.95.226402
Cazalilla MA, Ho AF, Giamarchi T. Two-component Fermi gas on internal-state-dependent optical lattices. Phys Rev Lett. 2005 Nov 25;95(22):226402. doi: 10.1103/PhysRevLett.95.226402. Epub 2005 Nov 23. PMID: 16384247.
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Phys Rev Lett. 2005 Nov 25;95(22):226402. doi: 10.1103/PhysRevLett.95.226402. Epub 2005 Nov 23.

Two-component Fermi gas on internal-state-dependent optical lattices.

Physical review letters

M A Cazalilla, A F Ho, T Giamarchi

Affiliations

  1. Donostia Int'l Physics Center, Manuel de Lardizabal, 4. 20018-Donostia, Spain.

PMID: 16384247 DOI: 10.1103/PhysRevLett.95.226402

Abstract

We study the phase diagram of a one-dimensional, two-component (i.e., pseudo-"spin"-(1/2)) ultracold atomic Fermi gas. The two atom species can have different hopping or mass. A very rich phase diagram for equal densities of the species is found, containing Mott insulators and superfluids. We also discuss coupling such 1D systems and the experimental signatures of the phases. In particular, we compute the spin-structure factor at small momentum, which should reveal a spin gap.

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