Effect of a lattice upon an interacting system of electrons: Breakdown of scaling and decay of persistent currents

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dc.creatorFalakshahi, Houman
dc.creatorNemeth, Zoltan Adam
dc.creatorPichard, Jean-Louis
dc.date2003-05-27
dc.date.accessioned2026-07-07T02:51:33Z
dc.date.available2026-07-07T02:51:33Z
dc.descriptionFor an interacting system of N electrons, we study the conditions under which a lattice model of size L with nearest neighbor hopping t and U/r Coulomb repulsion has the same ground state as a continuum model. For a fixed value of N, one gets identical results when the inter-electron spacing to the Bohr radius ratio r_s < r_s^*. Above r_s^*, the persistent current created by an enclosed flux begins to decay and r_s ceases to be the scaling parameter. Three criteria giving similar r_s^* are proposed and checked using square lattices.
dc.description7 pages, 5 postscript figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0305619
dc.identifierhttp://arxiv.org/abs/cond-mat/0305619
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21499
dc.subjectMesoscale and Nanoscale Physics
dc.subjectStrongly Correlated Electrons
dc.titleEffect of a lattice upon an interacting system of electrons: Breakdown of scaling and decay of persistent currents
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