Collisional cooling of ultra-cold atom ensembles using Feshbach resonances

Details Collisional cooling of ultra-cold atom ensembles using Feshbach resonances Collisional cooling of ultra-cold atom ensembles using Feshbach resonances

2009-03-14

arxiv.org/abs/0903.2568v1

Physical Review A 80, 030702(R) (2009)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures

Scientific paper

We propose a new type of cooling mechanism for ultra-cold fermionic atom ensembles, which capitalizes on the energy dependence of inelastic collisions in the presence of a Feshbach resonance. We first discuss the case of a single magnetic resonance, and find that the final temperature and the cooling rate is limited by the width of the resonance. A concrete example, based on a p-wave resonance of $^{40}$K, is given. We then improve upon this setup by using both a very sharp optical or radio-frequency induced resonance and a very broad magnetic resonance and show that one can improve upon temperatures reached with current technologies.

Affiliated with

Also associated with

No associations

Rating

Collisional cooling of ultra-cold atom ensembles using Feshbach resonances 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 Collisional cooling of ultra-cold atom ensembles using Feshbach resonances, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collisional cooling of ultra-cold atom ensembles using Feshbach resonances will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-236079