Electromagnetically Induced Transparency in an Entangled Medium

Weibin Li, Daniel Viscor, Sebastian Hofferberth, and Igor Lesanovsky
Phys. Rev. Lett. 112, 243601 – Published 18 June 2014

Abstract

We theoretically investigate light propagation and electromagnetically induced transparency in a quasi-one-dimensional gas in which atoms interact strongly via exchange interactions. We focus on the case in which the gas is initially prepared in a many-body state that contains a single excitation and conduct a detailed study of the absorptive and dispersive properties of such a medium. This scenario is achieved in interacting gases of Rydberg atoms with two relevant S states that are coupled through exchange. Of particular interest is the case in which the medium is prepared in an entangled spin-wave state. This, in conjunction with the exchange interaction, gives rise to a nonlocal susceptibility that—in comparison to conventional Rydberg electromagnetically induced transparency—qualitatively alters the absorption and propagation of weak probe light, leading to nonlocal propagation and enhanced absorption.

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  • Received 6 April 2014

DOI:https://doi.org/10.1103/PhysRevLett.112.243601

© 2014 American Physical Society

Authors & Affiliations

Weibin Li1,3, Daniel Viscor1, Sebastian Hofferberth2, and Igor Lesanovsky1

  • 1School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom
  • 25. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
  • 3School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China

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Issue

Vol. 112, Iss. 24 — 20 June 2014

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