Coherent optical transfer of Feshbach molecules to a lower vibrational state |
| |
Authors: | Winkler K Lang F Thalhammer G Straten P v d Grimm R Denschlag J Hecker |
| |
Affiliation: | Institut für Experimentalphysik, Forschungszentrum für Quantenphysik, Universit?t Innsbruck, 6020 Innsbruck, Austria. |
| |
Abstract: | Using the technique of stimulated Raman adiabatic passage (STIRAP) we have coherently transferred ultracold (87)Rb(2) Feshbach molecules into a more deeply bound vibrational quantum level. Our measurements indicate a high transfer efficiency of up to 87%. Because the molecules are held in an optical lattice with not more than a single molecule per lattice site, inelastic collisions between the molecules are suppressed and we observe long molecular lifetimes of about 1 s. Using STIRAP we have created quantum superpositions of the two molecular states and tested their coherence interferometrically. These results represent an important step towards Bose-Einstein condensation of molecules in the vibrational ground state. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|