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Vendredi 27 janvier 2017 à 11:00
Salle : D102 - Institut Galilée
Avinash Kumar
Laboratoire de Physique des Lasers
Université PARIS 13 - Institut Galilée - CNRS UMR7538
99, Av. J.B. Clément
93430 Villetaneuse

Ultracold and quantum degenerate mixtures of two or more atomic species open up many new research avenues, including the formation of ultracold heteronuclear ground-state molecules possessing a permanent electric dipole moment.
The anisotropic, long range dipole-dipole interactions between such molecules offer many potential applications, including novel schemes for quantum computation and simulation. I will go through the production method of RbCs molecules which are created from a high phase space density mixture of 87Rb and 133Cs in a two-step process. First weakly bound RbCs molecules are created using magnetoassociation on an interspecies Feshbach resonance [1].
The molecules are then optically transferred into the rovibrational ground state of the singlet potential by stimulated Raman adiabatic passage (STIRAP) [2]. In the later part I will present the experiments with ground state RbCs molecules[3] and characterization of the STIRAP transfer scheme [4].

[1]M.P. Köppinger, D.J. McCarron, D.L. Jenkin, P.K. Molony, H.-W. Cho, C.R. Le Sueur, C.L. Blackley, J.M. Hutson and S. L. Cornish, Phys. Rev. A 89, 033604 (2014).
[2] P.K. Molony, P.D. Gregory, Z. Ji, B. Lu, M.P. Köppinger, C.R. Le Sueur, C.L. Blackley, J.M. Hutson, and S.L. Cornish, Phys. Rev. Lett. 113, 255301 (2014).
[3] P. K. Molony, A. Kumar, P. D. Gregory, R. Kliese, T. Puppe, C. R. Le Sueur, J. Aldegunde, J. M. Hutson, and S. L. Cornish, Phys. Rev. A 94, 022507 (2016).
[4] Peter K. Molony, Philip D. Gregory, Avinash Kumar, Simon L. Cornish, ChemPhysChem (2016).

Characterization of ground state 87RbCs molecules

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