Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover

Details Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover

2005-10-27

arxiv.org/abs/cond-mat/0510761v1

Phys. Rev. Lett. 96, 090403 (2006)

Physics

Condensed Matter

Superconductivity

4 Pages, 4 Figures

Scientific paper

10.1103/PhysRevLett.96.090403

We have analyzed a single vortex at T=0 in a 3D superfluid atomic Fermi gas across a Feshbach resonance. On the BCS side, the order parameter varies on two scales: $k_{F}^{-1}$ and the coherence length $\xi$, while only variation on the scale of $\xi$ is seen away from the BCS limit. The circulating current has a peak value $j_{max}$ which is a non-monotonic function of $1/k_F a_s$ implying a maximum critical velocity $\sim v_F$ at unitarity. The number of fermionic bound states in the core decreases as we move from the BCS to BEC regime. Remarkably, a bound state branch persists even on the BEC side reflecting the composite nature of bosonic molecules.

Affiliated with

Also associated with

No associations

Rating

Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover 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 Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vortices in Superfluid Fermi Gases through the BEC to BCS Crossover will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-323376