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Dresden 2011 – scientific programme

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A: Fachverband Atomphysik

A 29: Ultracold Atoms: Trapping and Cooling 2 (with Q)

A 29.1: Talk

Friday, March 18, 2011, 10:30–10:45, HSZ 02

CPT and EIT - Dark state resonances in interacting systems — •Hanna Schempp1, Georg Günter1, Christoph S. Hofmann1, Thomas Amthor1, Matthias Weidemüller1, Jonathan D. Pritchard2, Daniel Maxwell2, Alex Gauguet2, Kevin J. Weatherill2, Matthew P.A. Jones2, Charles S. Adams2, Sevilay Sevinçli3, Cenap Ates3, and Thomas Pohl31Physikalisches Institut, Universität Heidelberg, Philosophenweg 12, 69120 Heidelberg — 2Department of Physics, Durham University, Rochester Building, South Road, Durham DH1 3LE, United Kingdom — 3Max-Planck-Institut für Physik Komplexer Systeme, Nöthnitzer Str. 38, 01187 Dresden

Coherent Population Trapping (CPT) and the related phenomenon of Electromagnetically Induced Transparency (EIT) are paradigms for quantum interference effects. EIT involving a Rydberg state has recently been studied experimentally [1] and has also attracted much interest in the context of quantum information processing [2]. In this work we compare experiments on CPT [3] and EIT [4] in Rydberg gases with controlled interparticle interactions. We present many-body calculations which take the resulting interparticle correlations into account.

[1] A. K. Mohapatra et al., PRL 98 113003 (2007)

[2] M. Müller et al., PRL 102 170502 (2009)

[3] H. Schempp et al., PRL 104 173602 (2010)

[4] J.D. Pritchard et al., PRL 105 193603 (2010)

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