Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 17: Kalte Atome: Fallen und Kühlung

Q 17.6: Vortrag

Montag, 12. März 2012, 17:45–18:00, V7.02

Cooling of a trapped atomic two-level system in a driven optical resonator — •Marc Bienert and Giovanna Morigi — Universität des Saarlandes, Theoretische Physik, D-66041 Saarbrücken, Germany

We investigate the cooling dynamics of the motional degree of freedom of a single atom which is trapped inside an optical resonator in the limit of small mechanical coupling. The atomic dipole interacts with a single mode of the cavity, which is weakly pumped by an external laser. Such a configuration shows several parameter regions, where interference between motional and cavity degrees of freedom can occur. We identify the parameter regions where efficient cooling can be found, identify the underlying physical processes, and present the cooling rate and final temperature for optimal choices of the parameters.