corner
corner

Phys. Rev. Lett. 93, 150403 (2004) [4 pages]

Detection of BCS Pairing in Neutral Fermi Fluids via Stokes Scattering: The Hebel-Slichter Effect

Download: PDF (191 kB) Buy this article Export: BibTeX or EndNote (RIS)

G. M. Bruun1 and Gordon Baym2,3
1Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen, Denmark
2NORDITA, Blegdamsvej 17, 2100 Copenhagen, Denmark
3Department of Physics, University of Illinois, 1110 W. Green Street, Urbana, Illinois 61801, USA

Received 2 June 2004; published 8 October 2004

We consider the effects of superfluidity on the light scattering properties of a two component gas of fermionic atoms, demonstrating that the scattered intensities of the Stokes and anti-Stokes lines exhibit a large maximum below the critical temperature when the gas is superfluid. This effect, the light scattering analog of the Hebel-Slichter effect in conventional superconductors, can be used to detect unambiguously the onset of pairing in an atomic gas in the BCS regime.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.150403
DOI:
10.1103/PhysRevLett.93.150403
PACS:
03.75.Ss, 05.30.Fk, 32.80.–t