Atom-molecule collisions in an optically trapped gas |
| |
Authors: | Zahzam N Vogt T Mudrich M Comparat D Pillet P |
| |
Affiliation: | Laboratoire Aimé Cotton, CNRS, Campus d'Orsay Batiment 505, 91405 Orsay, France. |
| |
Abstract: | Cold inelastic collisions between confined cesium (Cs) atoms and Cs2 molecules are investigated inside a CO2 laser dipole trap. Inelastic atom-molecule collisions can be observed and measured with a rate coefficient of approximately 2.6 x 10(-11) cm3 s(-1), mainly independent of the molecular rovibrational state populated. Lifetimes of purely atomic and molecular samples are essentially limited by rest gas collisions. The pure molecular trap lifetime ranges 0.3-1 s, 4 times smaller than the atomic one, as is also observed in a pure magnetic trap. We give an estimation of the inelastic molecule-molecule collision rate to be approximately 10(-11) cm3 s(-1). |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|