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Entanglement in Two-Photon Cascade Radiation and the Visibility of Second-Order Interference

  • Susanne F. Yelin
  • Ulrich W. Rathe
  • Marlan O. Scully
Part of the NATO ASI Series book series (NSSB, volume 358)

Abstract

Two-photon coincidence interferometry has recently been the subject of growing experimental and theoretical interest.1–7 From an experimental point of view, the visibility of the second-order interference is an important issue in such interferometers. For example, if the violation of a Bell inequality is tested in a given setup, then the visibility of the interference as predicted by quantum mechanics has to be high enough to contradict the existence of hidden variables. In the present article, we show that the entanglement present in spontaneous cascade radiation emitted by an excited three-level atom potentially enhances the visibility of second-order interference in comparison to the level produced by radiation from other sources.

Keywords

Interference Term Bell Inequality Coincidence Count Rate Cascade Radiation Photon Arrival Time 
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

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Susanne F. Yelin
    • 1
    • 2
    • 3
  • Ulrich W. Rathe
    • 1
    • 2
    • 3
  • Marlan O. Scully
    • 1
    • 3
  1. 1.Department of PhysicsTexas A&M UniversityCollege StationUSA
  2. 2.Sektion PhysikLudwig-Maximilians-Universität MünchenMünchenGermany
  3. 3.Max-Planck-Institut für QuantenoptikGarchingGermany

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