Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster II

Q 30.19: Poster

Tuesday, March 3, 2009, 16:30–19:00, VMP 9 Poster

Miniaturized Microwave Paul Trap for Electron Guiding — •Johannes Hoffrogge, Markus Schenk, Michael Krüger, and Peter Hommelhoff — Max-Planck-Institut für Quantenoptik, Garching bei München, Germany

We present numerical modelling results on an experiment aiming at guiding electrons in an AC quadrupole guide. In order to stably and tightly confine electrons in the transverse direction the guide has to be miniaturized and operated at microwave frequencies. Therefore, we plan to combine a microfabricated microwave guiding structure with the electrode layout of a planar two-dimensional Paul-trap on a chip substrate. With electrons emerging from a high brightness single atom tip direct injection into the transverse ground state of the guide should be feasible. This would lead to a well-defined motional quantum system with potential applications in interferometry and quantum information processing. Numerical simulations on the electrode design as well as first microwave tests of prototype structures will be presented.
We also discuss first steps towards the realization of a novel scheme to accelerate electrons with a laser field in a transparent grating structure.