Atomic Fermi-Bose Mixtures in Inhomogeneous and Random Lattices: From Fermi Glass to Quantum Spin Glass and Quantum Percolation

A. Sanpera, A. Kantian, L. Sanchez-Palencia, J. Zakrzewski, and M. Lewenstein
Phys. Rev. Lett. 93, 040401 – Published 20 July 2004

Abstract

We investigate strongly interacting atomic Fermi-Bose mixtures in inhomogeneous and random optical lattices. We derive an effective Hamiltonian for the system and discuss its low temperature physics. We demonstrate the possibility of controlling the interactions at local level in inhomogeneous but regular lattices. Such a control leads to the achievement of Fermi glass, quantum Fermi spin-glass, and quantum percolation regimes involving bare and/or composite fermions in random lattices.

  • Figure
  • Received 13 February 2004

DOI:https://doi.org/10.1103/PhysRevLett.93.040401

©2004 American Physical Society

Authors & Affiliations

A. Sanpera1,2, A. Kantian2, L. Sanchez-Palencia2, J. Zakrzewski3, and M. Lewenstein1,2

  • 1Institut de Ciències Fotòniques, 08034 Barcelona, Spain
  • 2Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany
  • 3Instytut Fizyki, Uniwersytet Jagielloński, PL-30-059 Kraków, Poland

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Issue

Vol. 93, Iss. 4 — 23 July 2004

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