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Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

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

Q 32.77: Poster

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

Atomic and photonic correlations in interacting Rydberg gases — •Miguel Ferreira-Cao, Vladislav Gavryusev, Georg Günter, Hanna Schempp, Martin Robert-de-Saint-Vincent, Christoph S. Hofmann, Shannon Whitlock, and Matthias Weidemüller — Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany

Ultracold atomic gases involving strongly interacting Rydberg states in combination with electromagnetically induced transparency provide an excellent system to generate nonclassical states of light [1,2].

Recent experiments have delivered evidence of effective photon-photon interactions and the corresponding atomic correlations [3,4]. Nonlocal effect such as self-focusing due to optical nonlinearities are predicted [5]. Strong antibunching of photons [2] as well as elastic interactions leading to bound state photons [6] are also evidenced.

We explore to which extent the emergence of photonic correlations can be related to atomic correlations through the full counting statistics of the Rydberg number [7] and direct Hanbury-Brown-Twiss measurements of photon correlations.

[1] Y. O. Dudin and A. Kuzmich, Science 336, 887 (2012)

[2] T. Peyronel et al., Nature 488, 57-60 (2012)

[3] D. Maxwell et al. Phys. Rev. Lett. 110, 103001 (2013)

[4] C.S. Hofmann et al., Phys. Rev. Lett. 110, 203601 (2013)

[5] S. Sevinçli et al. Phys. Rev. Lett. 107, 153001 (2011)

[6] O. Firstenberg et al., Nature 502, 71-75 (2013)

[7] H. Schempp et al. PRL accepted, arXiv:1308.0264 (2013)

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