Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2008-11-14
Physics
Condensed Matter
Other Condensed Matter
6 figures, 1 table
Scientific paper
One possibility for the creation of ultracold, high-phase-space-density quantum gases of molecules in the rovibrational ground state relies on first associating weakly-bound molecules from quantum-degenerate atomic gases on a Feshbach resonance and then transfering the molecules via several steps of coherent two-photon stimulated Raman adiabatic passage (STIRAP) into the rovibronic ground state. Here, in ultracold samples of Cs_2 Feshbach molecules produced out of ultracold samples of Cs atoms, we observe several optical transitions to deeply bound rovibrational levels of the excited 0_u^+ molecular potentials with high resolution. At least one of these transitions, although rather weak, allows efficient STIRAP transfer into the deeply bound vibrational level |v=73> of the singlet X ^1Sigma_g^+ ground state potential, as recently demonstrated. From this level, the rovibrational ground state level |v=0, J=0> can be reached with one more transfer step. In total, our results show that coherent ground state transfer for Cs_2 is possible using a maximum of two successive two-photon processes or one single four-photon STIRAP process.
Bouloufa Nadia
Danzl Johann G.
Dulieu Olivier
Gustavsson Mattias
Haller Elmar
No associations
LandOfFree
Precision molecular spectroscopy for ground state transfer of molecular quantum gases 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 Precision molecular spectroscopy for ground state transfer of molecular quantum gases, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precision molecular spectroscopy for ground state transfer of molecular quantum gases will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-11664