Mott insulator to superfluid transition of ultracold bosons in an optical lattice near a Feshbach resonance
arXiv:cond-mat/0406396 · doi:10.1209/epl/i2004-10514-9
Abstract
We study the phase diagram of ultracold bosons in an optical lattice near a Feshbach resonance. Depending on the boson density, the strength of the optical lattice potential and the detuning from resonance, the ground state can be a Mott insulator, a superfluid phase with both an atomic and a molecular condensate, or a superfluid phase with only a molecular condensate. Mott insulator to superfluid transitions can be induced either by decreasing the strength of the optical lattice potential or by varying the detuning from the Feshbach resonance. Quite generally, we find that for a commensurate density the ground-state may undergo several insulator-superfluid or superfluid-insulator transitions as the magnetic field is varied through the resonance.
arXiv comment4 pages, 5 figures, RevTex 4; (v2) revised version, to appear in Europhys. Lett
References in corpus (11)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Cold bosonic atoms in optical lattices
- Atom--Molecule Coherence in a Bose-Einstein Condensate
- Atom-molecule coherence in Bose gases
- Quantum Monte Carlo simulations of confined bosonic atoms in optical lattices
- Commensurate Two-Component Bosons in Optical Lattice: Groundstate Phase Diagram
- Quantum phase transition in an atomic Bose gas with a Feshbach resonance
- Superfluid transitions in bosonic atom-molecule mixtures near Feshbach resonance
- Superfluid to Mott insulator transition in one, two, and three dimensions
- Feshbach resonances in an optical lattice
- Spin-1 bosons with coupled ground states in optical lattices
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- Bose - Einstein Condensate Superfluid-Mott Insulator Transition in an Optical Lattice
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- Quantum and Thermal Phase Transitions in a Bosonic Atom-Molecule Mixture in a Two-dimensional Optical Lattice
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- Exotic Ising dynamics in a Bose-Hubbard model
- Magnetic Properties of the Second Mott Lobe in Pairing Hamiltonians
- Phase diagram of imbalanced strongly interacting fermions on a one-dimensional optical lattice