Violation of Bell's inequality with photons from independent sources.

نویسندگان

  • T B Pittman
  • J D Franson
چکیده

We report a violation of Bell's inequality using one photon from a parametric down-conversion source and a second photon from an attenuated laser beam. The two photons were entangled at a beam splitter using the postselection technique of Shih and Alley [Phys. Rev. Lett. 61, 2921 (1988)]]. A quantum interference pattern with a visibility of 91% was obtained using the photons from these independent sources, as compared with a visibility of 99.4% using two photons from a central parametric down-conversion source.

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عنوان ژورنال:
  • Physical review letters

دوره 90 24  شماره 

صفحات  -

تاریخ انتشار 2003