Berlin 2005 – wissenschaftliches Programm
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MO: Molekülphysik
MO 22: Poster I
MO 22.2: Poster
Samstag, 5. März 2005, 10:30–12:30, Poster HU
Interactions between K (42S) and Rb (52S) on the triplet potential surface — •H. Knöckel1, O. Docenko2, E. Zaharova2, M. Tamanis2, R. Ferber2, A. Pashov3, and E. Tiemann1 — 1Institut für Quantenoptik, Universität Hannover — 2Department of Physics and Institute of Atomic Physics and Spectroscopy, University of Latvia, Riga, Latvia — 3Institute for Scientific Research in Telecommunications, Sofia, Bulgaria
Molecular spectroscopy has proven to offer powerful tools for investigating interactions between atoms at short as well as at long internuclear distances (e.g. [1]). Precise and abundant experimental data led to accurate characterization of potential energy surfaces in a variety of atom pairs [2]. This present contribution focuses on the interaction between K and Rb atoms in their ground state on the triplet surface a3Σ+. This atomic pair attracted recently significant attention in the context of ultra-cold heteronuclear collisions and formation of translationally cold polar molecules and molecular Bose-Einstein condensates (e.g. [3,4]). New experimental data were obtained by means of high resolution Fourier transform spectroscopy. The present status report of the research will include analysis of the partially resolved hyperfine structure of the transitions and first estimates on the shape of the potential energy curve. The work is supported by DFG through SFB 407. O.D., M.T. and R.F. acknowledge a NATO grant and the EC 5th Frame Growth Grant. [1] C. Samuelis et al. Phys. Rev. A 63, 012710 (2001) [2] O. Docenko et al. Phys. Rev. A 69, 042503 (2004) [3] D. Wang et al. , arXiv:physics/0410220 [4] J. Goldwin et al. Phys. Rev. A 70, 021601 (2004)