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Hannover 2013 – scientific programme

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A: Fachverband Atomphysik

A 40: Poster: Ultra-cold plasmas and Rydberg systems (with Q)

A 40.4: Poster

Thursday, March 21, 2013, 16:00–18:30, Empore Lichthof

Line shifts of Rydberg atoms near surfaces due to adsorbate fields — •Florian Karlewski, Markus Mack, Jens Grimmel, Helge Hattermann, Simone Höckh, Florian Jessen, Daniel Cano, and József Fortágh — Physikalisches Institut der Universität Tübingen

Interfacing Rydberg atoms to solid state devices like atom chips is a promising concept for novel quantum systems. However, before attempting to understand and exploit the interactions between solid state quantum circuits and Rydberg atoms, one first needs to investigate the interactions between these atoms and the solid state surface.

The main effect on the Rydberg atoms is a line shift due to the electric field of atoms adsorbed to the surface. We show the accumulation of these adsorbates over time in a cold atom experiment, using electromagnetically induced transparency to detect the line shifts with high accuracy.

In future projects, we plan to study how adsorbates can be reduced, manipulated or avoided.

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