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Q: Fachverband Quantenoptik und Photonik

Q 56: Poster III

Q 56.86: Poster

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

Strongly interacting single photons in an ultra-cold Ryberg gas — •Hannes Gorniaczyk, Christoph Tresp, and Sebastian Hofferberth — 5. Physikalisches Institut, Universität Stuttgart, Deutschland

Strong photon-photon coupling can be achieved in highly nonlinear media such as Rydberg atoms under the condition of electromagnetically induced transparency. Such a system enables the implementation of fundamental building blocks for photonic quantum information processing. More fundamentally, the underlying interacting Ryberg polaritons form a novel strongly correlated many-body system with widely tunable parameters.

We are currently constructing an experimental setup for Rydberg excitation in an optically dense medium of ultra-cold ⁸⁷Rb atoms in a crossed optical dipole trap. With excitation lasers focussed smaller than the Rydberg blockade radius a one-dimensional system of Rydberg-polaritons can be realized. This system is suited to create non-classical light, in particular to create and absorb single photons in a deterministic way.