Abstract
We have combined results of our observation of shape resonances in ^85Rb
and ^87Rb, the JILA experiment realizing two coexisting Bose condensates
in ^87Rb, and our cold-atom optical double resonance observation of the
least-bound ^85Rb2 states(R.S. Freeland, C.C. Tsai, J.M.
Vogels, D.J. Heinzen, and B.J. Verhaar (to be published)), to describe
the collisions of cold Rb atoms with unprecedented accuracy. This
enables us(J.M. Vogels, C.C. Tsai, R.S. Freeland, S.J.J.M.F. Kokkelmans,
B.J. Verhaar, and D.J. Heinzen (to be published)) to predict B-field
induced Feshbach resonances, thus making it possible to control the sign
and magnitude of the effective particle-particle interaction in a Bose
condensate by tuning a bias magnetic field. For a gas of ^85Rb atoms
they are found to occur in the low-field seeking B-range. For ^87Rb we
predict them to occur at negative field values.
| Original language | English |
|---|---|
| Publication status | Published - 1 Apr 1997 |
| Event | 1997 Joint APS/AAPT Meeting, April 18-21, 1997, Washington, DC. - Washington, DC, United States Duration: 18 Apr 1997 → 21 Apr 1997 http://www.phys.lsu.edu/mog/mog9/node5.html |
Conference
| Conference | 1997 Joint APS/AAPT Meeting, April 18-21, 1997, Washington, DC. |
|---|---|
| Country/Territory | United States |
| City | Washington, DC |
| Period | 18/04/97 → 21/04/97 |
| Internet address |