Hamburg 2009 – scientific programme
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A: Fachverband Atomphysik
A 27: Ultra-Cold Atoms, Ions and BEC III (with Q)
A 27.1: Invited Talk
Thursday, March 5, 2009, 14:00–14:30, VMP 6 HS-C
Quantum gases of ultracold polar molecules — •Silke Ospelkaus — JILA, NIST and University of Colorado, Boulder, CO, USA
Polar molecules, molecules exhibiting a permanent electric dipole moment, have bright perspectives as systems with long-range and anisotropic interactions. These interactions form the basis for numerous exciting theoretical proposals ranging from ultra-cold chemistry, precision measurements, quantum phase transitions, to novel systems for quantum information processing and quantum control with external magnetic and electric fields. We will present our recent work on the creation and characterization of a near quantum degenerate gas of rovibrational ground state polar 40K87Rb molecules. Using a single step of two photon coherent transfer, we convert weakly bound KRb Feshbach molecules to the rovibrational ground state of the singlet electronic ground molecular potential. The polar molecules have a permanent electric dipole moment, which we measure with Stark spectroscopy to be 0.566(17) Debye.
Work done in collaboration with K.-K. Ni, M. H. G. de Miranda, A. Peer, B. Neyenhuis, J. J. Zirbel, P. S. Julienne, S. Kotochigova, D. S. Jin and J. Ye