Mott Phase in Polarized Two-component Atomic Fermi Lattice Gas:A Playground for S=1/2 Heisenberg Model in Magnetic Field

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dc.creatorMachida, M.
dc.creatorOkumura, M.
dc.creatorYamada, S.
dc.creatorDeguchi, T.
dc.creatorOhashi, Y.
dc.creatorMatsumoto, H.
dc.date2008-05-28
dc.date2008-11-07
dc.date.accessioned2026-07-07T12:35:19Z
dc.date.available2026-07-07T12:35:19Z
dc.descriptionWe investigate effects of pseudo-spin population imbalance on Mott phases in 1D trapped two-component atomic Fermi gases loaded on optical lattices based on the repulsive Hubbard model in harmonic traps. By using the density matrix renormalization group method, we numerically calculate density profiles of each component and clarify the pseudo-spin magnetism. Consequently, we find that all the features from weakly imbalance to fully polarized cases are well described by S=1/2 antiferromagnetic Heisenberg chain under magnetic field. These results indicate that the Mott phases offer experimental stages for studying various interacting spin systems.
dc.identifierhttps://arxiv.org/abs/0805.4261
dc.identifierhttp://arxiv.org/abs/0805.4261
dc.identifierPhys. Rev. B 78, 235117 (2008).
dc.identifierdoi:10.1103/PhysRevB.78.235117
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217733
dc.subjectStrongly Correlated Electrons
dc.titleMott Phase in Polarized Two-component Atomic Fermi Lattice Gas:A Playground for S=1/2 Heisenberg Model in Magnetic Field
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