Interacting Fermi Gases in Disordered One-Dimensional Lattices

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dc.creatorXianlong, Gao
dc.creatorPolini, M.
dc.creatorTanatar, B.
dc.creatorTosi, M. P.
dc.date2006-03-06
dc.date.accessioned2026-07-07T07:02:09Z
dc.date.available2026-07-07T07:02:09Z
dc.descriptionInteracting two-component Fermi gases loaded in a one-dimensional (1D) lattice and subject to harmonic trapping exhibit intriguing compound phases in which fluid regions coexist with local Mott-insulator and/or band-insulator regions. Motivated by experiments on cold atoms inside disordered optical lattices, we present a theoretical study of the effects of a random potential on these ground-state phases. Within a density-functional scheme we show that disorder has two main effects: (i) it destroys the local insulating regions if it is sufficiently strong compared with the on-site atom-atom repulsion, and (ii) it induces an anomaly in the compressibility at low density from quenching of percolation.
dc.description7 pages, 4 figures, submitted
dc.identifierhttps://arxiv.org/abs/cond-mat/0603118
dc.identifierhttp://arxiv.org/abs/cond-mat/0603118
dc.identifierPhys. Rev. B 73, 161103(R) (2006)
dc.identifierdoi:10.1103/PhysRevB.73.161103
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/108503
dc.subjectStrongly Correlated Electrons
dc.subjectDisordered Systems and Neural Networks
dc.titleInteracting Fermi Gases in Disordered One-Dimensional Lattices
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