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- W2069134401 abstract "In this paper, we study persistent charge and spin currents in the ground state of the one-dimensional mesoscopic Hubbard ring with repulsive interaction based on its Bethe-ansatz solution. We find that the persistent charge current is suppressed by the on-site Coulomb interaction more significantly at half-filling than away from half-filling. As the system size increases the charge current decays exponentially as I~L−1e−L/ξ in the half-filling case and decays in a power law away from the half-filling case. We also find that the persistent spin current is suppressed by the on-site Coulomb interaction, and it decays algebraically as the system size increases both at half-filling and away from half-filling." @default.
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- W2069134401 date "2008-09-01" @default.
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- W2069134401 title "Persistent currents in the one-dimensional mesoscopic Hubbard ring" @default.
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- W2069134401 doi "https://doi.org/10.1088/0953-8984/20/39/395209" @default.
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