Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr

Details Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr

2004-12-02

arxiv.org/abs/cond-mat/0412049v2

Physics

Condensed Matter

Other Condensed Matter

4 pages, 2 figures, 1 table

Scientific paper

10.1103/PhysRevLett.94.183201

We have observed Feshbach resonances in elastic collisions between ultracold ${}^{52}$Cr atoms. This is the first observation of collisional Feshbach resonances in an atomic species with more than one valence electron. The zero nuclear spin of ${}^{52}$Cr and thus the absence of a Fermi-contact interaction leads to regularly-spaced resonance sequences. By comparing resonance positions with multi-channel scattering calculations we determine the s-wave scattering length of the lowest $^{2S+1}\Sigma_{g}^{+}$ potentials to be $\unit[112(14)]{a_0}$, $\unit[58(6)]{a_0}$ and $-\unit[7(20)]{a_0}$ for S=6, 4, and 2, respectively, where $a_{0}=\unit[0.0529]{nm}$.

Affiliated with

Also associated with

No associations

Rating

Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr 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 Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of Feshbach resonances in an ultracold gas of ${}^{52}$Cr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-146356