2008/12/30 by Johann G. Danzl, Manfred J. Mark, Elmar Haller +8 · 1 citation
Physics and Astronomy · #Amplitude #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Excitation #Excited state #Ground state #Lattice (music) #Molecule #Optical lattice #Optics #Physics #Quantum mechanics #Quantum optics and atomic interactions #Recoil #Rotational–vibrational spectroscopy #Singlet state #Strong Light-Matter Interactions #Superfluidity #Trapping #cond-mat.other
paper · pdf · doi:10.1088/1367-2630/11/5/055036
12 pages, 4 figures, submitted to the Special Issue of New Journal of Physics on Cold and Ultracold Molecules
arxiv created 2008/12/30 · openalex publication_date 2009/05/14 · arxiv updated 2015/05/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate efficient transfer of ultracold molecules into a deeply bound rovibrational level of the singlet ground state potential in the presence of an optical lattice. The overall molecule creation efficiency is 25%, and the transfer efficiency to the rovibrational level | v =73, J =2⟩ is above 80%. We find that the molecules in | v =73, J =2⟩ are trapped in the optical lattice, and that the lifetime in the lattice is limited by optical excitation by the lattice light. The molecule trapping time for a lattice depth of 15 atomic recoil energies is about 20 ms. We determine the trapping frequency by the lattice phase and amplitude modulation technique. It will now be possible to transfer the molecules to the rovibrational ground state | v =0, J =0⟩ in the presence of the optical lattice.