Correlation Effects on Atom Density Profiles of 1-D and 2-D Polarized Atomic-Fermi-Gas Loaded on Optical Lattice

dc.creatorMachida, M.
dc.creatorYamada, S.
dc.creatorOkumura, M.
dc.creatorOhashi, Y.
dc.creatorMatsumoto, H.
dc.date2008-06-03
dc.date2008-06-05
dc.date.accessioned2026-07-07T09:42:35Z
dc.date.available2026-07-07T09:42:35Z
dc.descriptionWe investigate effects of optical lattice potential in one- and two-dimensional two-component trapped Fermi gases with population imbalances. Using the exact diagonalization and the density matrix renormalization group methods complementarily, we calculate the atom density profile from the ground state many-body wavefunction as a function of attractive interaction strength for various population imbalances. The numerical results reveal that although a phase separation between the superfluid core and the shell cloud of excess atoms occurs as observed in experiments without the optical lattice, the population imbalance generally remains in the core region in contrast to the non-lattice cases. The essence of the numerical results in a strong attractive regime can be explained by an effective model composed of Cooper pairs and excess major fermions.
dc.descriptionReferences are added to the published version
dc.identifierhttps://arxiv.org/abs/0806.0465
dc.identifierhttp://arxiv.org/abs/0806.0465
dc.identifierPhys. Rev. A 77, 053614 (2008)
dc.identifierdoi:10.1103/PhysRevA.77.053614
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162233
dc.subjectStrongly Correlated Electrons
dc.titleCorrelation Effects on Atom Density Profiles of 1-D and 2-D Polarized Atomic-Fermi-Gas Loaded on Optical Lattice
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