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Announcing single photons from imperfect sources by means of “interaction-free" measurements

  • T. Konrad
  • A. Scherer
  • M. Nock
  • J. Audretsch
Article
  • 38 Downloads

Abstract.

Interaction-free measurements can indicate the presence of photo-sensitive objects and even image the objects without damaging them. Can they also be used to indicate the presence of a single photon without absorbing it? We address this question in the context of improving the efficiency of single-photon sources. In particular, we interpret a recently proposed method to announce single photons based on two-photon absorption [Konrad et al., Phys. Rev. A 73, 032327 (2006)] in terms of "interaction-free" measurements.

Keywords

Single Photon European Physical Journal Special Topic Destructive Interference Probability Amplitude Zehnder Interferometer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Authors and Affiliations

  • T. Konrad
    • 1
  • A. Scherer
    • 2
  • M. Nock
    • 1
  • J. Audretsch
    • 2
  1. 1.School of Physics, University of KwaZulu-NatalDurbanSouth Africa
  2. 2.Fachbereich Physik, Universität KonstanzKonstanzGermany

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