Abstract
We have observed a gas of Fermi atoms confined in the antinodes of a standing electromagnetic wave. The standing wave is formed by two counter-propagating beams with the wavelength of 10.6 μm focused on the same spot. Each antinode confines a pancake-shaped cloud of 7500 lithium-6 atoms in two equally populated spin states at the temperature T = 0.1E F, where E F is the Fermi energy. The system is in the regime beyond the local density approximation: Only the 3 lowest energy states of the axial motion are populated. The system may become an instrument for the study of 2D Fermi physics and 3D effects beyond the local density approximation.
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Original Russian Text © K.A. Martiyanov, V.B. Makhalov, A.V. Turlapov, 2010, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2010, Vol. 91, No. 8, pp. 401–404.
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Martiyanov, K.A., Makhalov, V.B. & Turlapov, A.V. Observation of a degenerate Fermi gas confined by a standing electromagnetic wave. Jetp Lett. 91, 369–372 (2010). https://doi.org/10.1134/S0021364010080011
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DOI: https://doi.org/10.1134/S0021364010080011