Phys. Rev. Lett. 95, 260407 (2005) [4 pages]Dressed Feshbach Molecules in the BEC-BCS CrossoverReceived 13 June 2005; revised 23 September 2005; published 28 December 2005 We present the random phase approximation (RPA) theory of the Bose-Einstein-condensation–Bardeen-Cooper-Schrieffer crossover in an atomic Fermi gas near a Feshbach resonance that includes the relevant two-body atomic physics exactly. This allows us to determine the probability Z for the dressed molecules in the Bose-Einstein condensate to be in the closed channel of the Feshbach resonance and to compare with the recent experiments of Partridge et al. [ 95 020404 (2005)] with 6Li, who have measured the same quantity. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.260407
DOI:
10.1103/PhysRevLett.95.260407
PACS:
03.75.−b, 67.40.−w, 39.25.+k
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.