Physics – Quantum Physics
Scientific paper
2008-11-10
Phys. Rev. A 79, 043612 (2009)
Physics
Quantum Physics
Scientific paper
10.1103/PhysRevA.79.043612
We study through controlled numerical simulation the ground state properties of spin-polarized strongly interacting fermi gas in an anisotropic optical lattice, which is described by an effective one-dimensional general Hubbard model with particle correlated hopping rate. We show that the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) type of state, while enhanced by a negative correlated hopping rate, can be completely suppressed by positive particle correlated hopping, yielding to an unusual magnetic phase even for particles with on-site attractive interaction We also find several different phase separation patterns for these atoms in an inhomogeneous harmonic trap, depending on the correlated hopping rate.
Duan Lu-Ming
Wang Binghong
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