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Disordered ultracold atomic gases in optical lattices: A case study of Fermi-Bose mixtures
Grup d’Òptica, Departament de Física, Universitat Autònoma de Barcelona, E-08193 Belaterra, Barcelona, Spain;Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany.
Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany;Laboratoire Charles Fabry, Institut d’Optique Théorique et Appliquée, Université Paris-Sud XI, F-91403 Orsay Cedex, France.
Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany;Institut für Quantenoptik und Quanteninformation der Österreichischen, Akademie der Wissenschaften, A-6020 Innsbruck, Austria;Institut für Theoretische Physik, Universität Innsbruck, A-6020 Innsbruck, Austria.
Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany;Grup de Física Teòrica, Departament de Física, Universitat Autònoma de Barcelona, E-08193 Belaterra, Barcelona, Spain.
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2005 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 72, no 6Article in journal (Refereed) Published
Abstract [en]

We present a review of properties of ultracold atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices. In the strong interacting limit and at very low temperatures, fermions form, together with bosons or bosonic holes, composite fermions. Composite fermions behave as a spinless interacting Fermi gas, and in the presence of local disorder they interact via random couplings and feel effective random local potential. This opens a wide variety of possibilities of realizing various kinds of ultracold quantum disordered systems. In this paper we review these possibilities, discuss the accessible quantum disordered phases, and methods for their detection. The discussed quantum phases include Fermi glasses, quantum spin glasses, “dirty” superfluids, disordered metallic phases, and phases involving quantum percolation.

Place, publisher, year, edition, pages
2005. Vol. 72, no 6
National Category
Atom and Molecular Physics and Optics
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URN: urn:nbn:se:uu:diva-336260DOI: 10.1103/PhysRevA.72.063616OAI: oai:DiVA.org:uu-336260DiVA, id: diva2:1165660
Available from: 2017-12-13 Created: 2017-12-13 Last updated: 2017-12-13

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Publisher's full textElectronic full texthttp://link.aps.org/doi/10.1103/PhysRevA.72.063616

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