Bose-Einstein Condensation of Particle-Hole Pairs in Ultracold Fermionic Atoms Trapped within Optical Lattices

Abstract

We investigate the Bose-Einstein condensation (BEC, superfluidity) of particle-hole pairs in ultracold Fermionic atoms with repulsive interactionsand arbitrary polarization, which are trapped within optical lattices. Near a Feshbach resonance, the dynamics of particle-hole pairs can be described by a hard-core Bose-Hubbard model. The insulator - superfluid and charge-density-wave (CDW) - superfluid phase transitions can be induced by decreasing and increasing the potential depths with controlling the trapping laser intensity, respectively. The parameter and polarization dependence of the critical temperatures for the ordered states (BEC and/or CDW) is discussed simultaneously.

5 pages, 3 figures, Accepted for publication in Physical Review Letters

References in corpus (3)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Local quantum criticality in confined fermions on optical lattices

Cited by in corpus (8)

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• Exact Floquet states of a driven condensate and their stabilities
• Bloch oscillations of multi-magnon excitations in a Heisenberg XXZ chain
• Cavity-enhanced detection of magnetic orders in lattice spin models
• Edge states in quantum spin chains: the interplay among interaction, gradient magnetic field and Floquet engineering