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Title: Superfluid Fermi Gas in a 1D Optical Lattice

Abstract

We calculate the superfluid transition temperature for a two-component 3D Fermi gas in a 1D tight optical lattice and discuss a dimensional crossover from the 3D to quasi-2D regime. For the geometry of finite size discs in the 1D lattice, we find that even for a large number of atoms per disc the critical effective tunneling rate for a quantum transition to the Mott insulator state can be large compared to the loss rate caused by three-body recombination. This allows the observation of the Mott transition, in contrast to the case of Bose-condensed gases in the same geometry.

Authors:
 [1];  [2];  [3]
  1. BEC-INFM and Dipartimento di Fisica, Universita di Trento, 1-38050 Povo (Italy)
  2. Laboratoire Physique Theorique et Modeles Statistiques, Universite Paris Sud, Batiment 100, 91405 Orsay Cedex (France)
  3. (Netherlands)
Publication Date:
OSTI Identifier:
20771619
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 95; Journal Issue: 26; Other Information: DOI: 10.1103/PhysRevLett.95.260402; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOSE-EINSTEIN GAS; FERMI GAS; RECOMBINATION; SUPERFLUIDITY; THREE-BODY PROBLEM; TRANSITION TEMPERATURE; TUNNEL EFFECT

Citation Formats

Orso, G., Shlyapnikov, G.V., and Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. Superfluid Fermi Gas in a 1D Optical Lattice. United States: N. p., 2005. Web. doi:10.1103/PhysRevLett.95.260402.
Orso, G., Shlyapnikov, G.V., & Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. Superfluid Fermi Gas in a 1D Optical Lattice. United States. doi:10.1103/PhysRevLett.95.260402.
Orso, G., Shlyapnikov, G.V., and Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam. Sat . "Superfluid Fermi Gas in a 1D Optical Lattice". United States. doi:10.1103/PhysRevLett.95.260402.
@article{osti_20771619,
title = {Superfluid Fermi Gas in a 1D Optical Lattice},
author = {Orso, G. and Shlyapnikov, G.V. and Van der Waals-Zeeman Institute, University of Amsterdam, Valckenierstraat 65/67, 1018 XE Amsterdam},
abstractNote = {We calculate the superfluid transition temperature for a two-component 3D Fermi gas in a 1D tight optical lattice and discuss a dimensional crossover from the 3D to quasi-2D regime. For the geometry of finite size discs in the 1D lattice, we find that even for a large number of atoms per disc the critical effective tunneling rate for a quantum transition to the Mott insulator state can be large compared to the loss rate caused by three-body recombination. This allows the observation of the Mott transition, in contrast to the case of Bose-condensed gases in the same geometry.},
doi = {10.1103/PhysRevLett.95.260402},
journal = {Physical Review Letters},
number = 26,
volume = 95,
place = {United States},
year = {Sat Dec 31 00:00:00 EST 2005},
month = {Sat Dec 31 00:00:00 EST 2005}
}