Delayed "Choice" quantum eraser

  title={Delayed "Choice" quantum eraser},
  author={Kim and Yu. and Kulik and Shih and Scully},
  journal={Physical review letters},
  volume={84 1},
  • Kim, Yu., Scully
  • Published 13 March 1999
  • Physics
  • Physical review letters
We report a delayed "choice" quantum eraser experiment of the type proposed by Scully and Druhl (where the "choice" is made randomly by a photon at a beam splitter). The experimental results demonstrate the possibility of delayed determination of particlelike or wavelike behavior via quantum entanglement. The which-path or both-path information of a quantum can be marked or erased by its entangled twin even after the registration of the quantum. 

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