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Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 45: Ultracold Plasmas, Rydberg Systems and Molecules

Q 45.5: Talk

Thursday, March 9, 2017, 12:15–12:30, P 104

Many-body dynamics of driven-dissipative Rydberg cavity polaritons — •Tim Pistorius and Hendrik Weimer — Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, 30167 Hannover, Germany

The usage of photons as long-range information carriers has greatly increased the interest in systems with nonlinear optical properties in recent years. The nonlinearity is easily achievable in Rydberg mediums through the strong van der Waals interaction which makes them one of the best candidates for such a system. Here, we propose a way to analyze the steady state solutions of a Rydberg medium in a cavity through the combination of the variational principle for open quantum systems [1] and the P-distribution of the density matrix. To get a better understanding of the many-body-dynamics a transformation into the polariton picture is performed and investigated.

[1] H. Weimer, Variational Principle for Steady States of Dissipative Quantum Many-Body Systems, Phys. Rev. Lett.114, 040402 (2015).

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