Phase diagram of Bose-Fermi mixtures in one-dimensional optical lattices

Details Phase diagram of Bose-Fermi mixtures in one-dimensional optical lattices Phase diagram of Bose-Fermi mixtures in one-dimensional optical lattices

2005-12-12

arxiv.org/abs/cond-mat/0512243v3

Phys. Rev. Lett. 96, 190402 (2006)

Physics

Condensed Matter

Statistical Mechanics

5 pages, 5 figures, replaced with published version

Scientific paper

10.1103/PhysRevLett.96.190402

The ground state phase diagram of the one-dimensional Bose-Fermi Hubbard model is studied in the canonical ensemble using a quantum Monte Carlo method. We focus on the case where both species have half filling in order to maximize the pairing correlations between the bosons and the fermions. In case of equal hopping we distinguish between phase separation, a Luttinger liquid phase and a phase characterized by strong singlet pairing between the species. True long-range density waves exist with unequal hopping amplitudes.

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