2005•Laser SpectroscopyOpen access

FERMIONIC ATOMS WITH TUNABLE INTERACTIONS IN A 3D OPTICAL LATTICE

Thilo Stöferle, Henning Moritz, C. Schori, Kenneth Günter, Michael Köhl, Tilman Esslinger

Abstract

We report on the realization of a quantum degenerate atomic Fermi gas in an optical lattice. Fermi surfaces of noninteracting fermions are studied in a three-dimensional lattice. Using a Feshbach resonance, we observe a coupling of the Bloch bands in the strongly interacting regime.

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Key concepts: Optical lattice, Degenerate energy levels, Feshbach resonance, Lattice (music), Fermion, Physics, Condensed matter physics, Fermi Gamma-ray Space Telescope