Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective

Details Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective

2007-01-02

arxiv.org/abs/cond-mat/0701044v2

Physics

Condensed Matter

Superconductivity

4 pages, final version to appear in PRL

Scientific paper

10.1103/PhysRevLett.99.090402

The spectrum of two spin-up and two spin-down fermions in a trap is calculated using a correlated gaussian basis throughout the range of the BCS-BEC crossover. These accurate calculations provide a few-body solution to the crossover problem. This solution is used to study the time-evolution of the system as the scattering length is changed, mimicking experiments with Fermi gases near Fano-Feshbach resonances. The structure of avoiding crossings in the spectrum allow us to understand the dynamics of the system as a sequence of Landau-Zener transitions. Finally, we propose a ramping scheme to study atom-molecule coherence.

Affiliated with

Also associated with

No associations

Rating

Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective 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 Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-563588