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Optical response of superfluid state in dilute atomic Fermi-Dirac gases

J. Ruostekoski
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Abstract

We theoretically study the propagation of light in a Fermi-Dirac gas in the presence of a superfluid state. BCS pairing between atoms in different hyperfine levels may significantly increase the optical linewidth and line shift of a quantum degenerate Fermi-Dirac gas and introduce a local-field correction that, under certain conditions, dramatically dominates over the Lorentz-Lorenz shift. These optical properties could possibly unambiguously sign the presence of the superfluid state and determine the value of the BCS order parameter.

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BibTeXRIS

J. Ruostekoski. 1999-02-24. Optical response of superfluid state in dilute atomic Fermi-Dirac gases. https://doi.org/10.1103/physreva.60.r1775

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