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Stuttgart 2012 – scientific programme

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A: Fachverband Atomphysik

A 45: Kalte Atome

A 45.4: Talk

Friday, March 16, 2012, 11:30–11:45, V7.02

Continuous Coupling of Ultracold Atoms to Ionic Plasma via Rydberg Excitation — •Torsten Manthey, Tobias Massimo Weber, Thomas Niederprüm, Philipp Langer, Vera Guarrera, Giovanni Barontini, and Herwig Ott — Research Center Optimas, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany

We characterize the two-photon excitation of an ultracold gas of Rubidium atoms to Rydberg states analysing the induced atomic losses from an optical dipole trap. Extending the duration of the Rydberg excitation to several ms, the ground state atoms are continuously coupled to the formed positively charged plasma. In this regime we measure the n-dependence of the blockade effect and we characterise the interaction of the excited states and the ground state with the plasma.

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