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DPG

Heidelberg 2015 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 43: Ultracold Plasmas and Rydberg Systems IV (with Q)

A 43.4: Vortrag

Freitag, 27. März 2015, 15:15–15:30, P/H2

Photon interactions in a laser-driven Rydberg gas — •Dario Jukić, Fabian Maucher, and Thomas Pohl — Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, 01187 Dresden

Electromagnetically induced transparency (EIT) in a system of interacting Rydberg atoms provides a unique platform to explore strong and nonlocal optical nonlinearities, both in the classical and quantum regime. We present our recent progress in understanding the nature of effective photon interactions in such a medium. In the limit of large photon numbers and moderate nonlinearities we discuss the applicability of a mean-field approach for the light field, which is shown to permit an analytical treatment of its propagation dynamics. In the opposite limit, strong correlation effects start to play a dominant role and are explored within few-body quantum calculations. Experimental signatures for the found interaction effects will also be discussed.

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