Resonances in ultracold collisions confined by atomic traps

22nd International Laser Physics Workshop

Melezhik, Vladimir S.^1

Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Moscow Region 141980, Dubna, Russia^1

关键词: Atomic waveguides;    Center of mass;    Confined geometries;    Confinement-induced resonances;    Magnetic Feshbach resonances;    Molecule formation;    Ultracold atomic collision;    Ultracold collisions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/497/1/012027/pdf
DOI  :  10.1088/1742-6596/497/1/012027

来源: IOP

【 摘 要 】

We have developed a method for treating ultracold pair collisions in confined geometry of tight atomic waveguides. With this approach we have predicted and analyzed a few novel resonant and multichannel effects induced by confining traps in ultracold atomic collisions. In this report we discuss our model yielding the shifts and widths of magnetic Feshbach resonances in tight atomic waveguides. We also briefly discuss a resonant mechanism of molecule formation in atomic traps with transferring the energy release to the center-of-mass excitation while forming molecule and dipolar confinement-induced resonances in waveguides. These results could potentially be used experimentally.