BCS and BEC p-wave pairing in Bose-Fermi gases

Details BCS and BEC p-wave pairing in Bose-Fermi gases BCS and BEC p-wave pairing in Bose-Fermi gases

2011-09-13

arxiv.org/abs/1109.2820v1

Physics

Condensed Matter

Quantum Gases

14 pages, 6 eps-figures. To be published in European Physical Journal D

Scientific paper

The pairing of fermionic atoms in a mixture of atomic fermion and boson gases at zero temperature is investigated. The attractive interaction between fermions, that can be induced by density fluctuations of the bosonic background, can give rise to a superfluid phase in the Fermi component of the mixture. The atoms of both species are assumed to be in only one internal state, so that the pairing of fermions is effective only in odd-l channels. No assumption about the value of the ratio between the Fermi velocity and the sound velocity in the Bose gas is made in the derivation of the energy gap equation. The gap equation is solved without any particular "ansatz" for the pairing field or the effective interaction. The p-wave superfluidity is studied in detail. By increasing the strength and/or decreasing the range of the effective interaction a transition of the fermion pairing regime, from the Bardeen-Cooper-Schrieffer state to a system of tightly bound couples can be realized. These composite bosons behave as a weakly-interacting Bose-Einstein condensate.

Affiliated with

Also associated with

No associations

Rating

BCS and BEC p-wave pairing in Bose-Fermi gases does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with BCS and BEC p-wave pairing in Bose-Fermi gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BCS and BEC p-wave pairing in Bose-Fermi gases will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-334170