Superfluid Fermi Gas in a 1D Optical Lattice

Journal Article · Sat Dec 31 00:00:00 EST 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.260402· OSTI ID:20771619

Orso, G ^[1]; Shlyapnikov, G V ^[2]

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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)

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.

• OSTI ID: 20771619
• Journal Information: Physical Review Letters, Vol. 95, Issue 26; Other Information: DOI: 10.1103/PhysRevLett.95.260402; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN GAS
FERMI GAS
RECOMBINATION
SUPERFLUIDITY
THREE-BODY PROBLEM
TRANSITION TEMPERATURE
TUNNEL EFFECT