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Detection of BCS pairing in neutral Fermi fluids via Stokes scattering: the Hebel Slichter effect

G. M. Bruun·Gordon Baym
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Abstract

We consider the effects of superfluidity on the light scattering properties of a two component gas of fermionic atoms. It is demonstrated that the scattered intensity of the Stoke/anti Stokes lines exhibit a large maximum below the critical temperature when the gas is superfluid. This effect, which is the light scattering analogue of the famous Hebel-Slichter effect for conventional superconductors can be used to detect unambiguously the onset of superfluidity in an atomic gas in the BCS regime.

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G. M. Bruun, Gordon Baym. 2004-06-19. Detection of BCS pairing in neutral Fermi fluids via Stokes scattering: the Hebel Slichter effect. https://doi.org/10.1103/physrevlett.93.150403

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