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Phys. Rev. A 68, 011601(R) (2003) [4 pages]

Production of a Fermi gas of atoms in an optical lattice

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G. Modugno, F. Ferlaino, R. Heidemann*, G. Roati, and M. Inguscio
LENS and Dipartimento di Fisica, Università di Firenze, and INFM, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy

Received 10 April 2003; published 7 July 2003

We prepare a degenerate Fermi gas of potassium atoms by sympathetic cooling with rubidium atoms in a one-dimensional optical lattice. In a tight lattice, we observe a change of the density of states of the system, which is a signature of quasi two-dimensional confinement. We also find that the dipolar oscillations of the Fermi gas along the tight lattice are almost completely suppressed.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.011601
DOI:
10.1103/PhysRevA.68.011601
PACS:
03.75.Ss, 03.75.Lm, 71.10.Pm

*Permanent address: 5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany.

 
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