Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 32: Poster: Quantum gases, ultracold atoms and molecules

Q 32.85: Poster

Mittwoch, 19. März 2014, 16:30–18:30, Spree-Palais

Crystallization of photons via storage of interacting Rydberg polaritons — •Matthias Moos¹, Michael Höning¹, Johannes Otterbach², Dominik Muth¹, and Michael Fleischhauer¹ — ¹Fachbereich Physik und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany — ²Department of Physics, Harvard University, Cambridge, MA 02138, USA

The coupling of weak light fields to Rydberg states of atoms under conditions of electromagnetically induced transparency can be described in terms of Rydberg polaritons which have a tunable mass and strong nonlocal interactions, due to the van-der-Waals interactions of the atoms. Using exact wave-function calculations for two particles we show that after a short initialization time the physics is fully described by an effective many-body model of interacting Rydberg dark-state polaritons. Applying a time-dependent Luttinger liquid model we analyze the effect of the strong repulsive interactions on the storage of Photons into stationary Rydberg excitations. We show that the interactions lead to the generation of non-classical photon-states which exhibit crystalline order over a finite length.