Full Counting Statistics of Laser Excited Rydberg Aggregates in a One-Dimensional Geometry

H. Schempp, G. Günter, M. Robert-de-Saint-Vincent, C. S. Hofmann, D. Breyel, A. Komnik, D. W. Schönleber, M. Gärttner, J. Evers, S. Whitlock, and M. Weidemüller
Phys. Rev. Lett. 112, 013002 – Published 7 January 2014
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Abstract

We experimentally study the full counting statistics of few-body Rydberg aggregates excited from a quasi-one-dimensional atomic gas. We measure asymmetric excitation spectra and increased second and third order statistical moments of the Rydberg number distribution, from which we determine the average aggregate size. Estimating rates for different excitation processes we conclude that the aggregates grow sequentially around an initial grain. Direct comparison with numerical simulations confirms this conclusion and reveals the presence of liquidlike spatial correlations. Our findings demonstrate the importance of dephasing in strongly correlated Rydberg gases and introduce a way to study spatial correlations in interacting many-body quantum systems without imaging.

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  • Received 1 August 2013

DOI:https://doi.org/10.1103/PhysRevLett.112.013002

© 2014 American Physical Society

Authors & Affiliations

H. Schempp1, G. Günter1, M. Robert-de-Saint-Vincent1, C. S. Hofmann1, D. Breyel2, A. Komnik2, D. W. Schönleber3, M. Gärttner3, J. Evers3, S. Whitlock1,*, and M. Weidemüller1,†

  • 1Physikalisches Institut, Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany
  • 2Institut für Theoretische Physik, Universität Heidelberg, Philosophenweg 16, 69120 Heidelberg, Germany
  • 3Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

  • *whitlock@physi.uni-heidelberg.de
  • Also at University of Science and Technology of China, Hefei, Anhui 230026, China. weidemueller@uni-heidelberg.de

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Vol. 112, Iss. 1 — 10 January 2014

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