Experimental delayed-choice entanglement swapping

  title={Experimental delayed-choice entanglement swapping},
  author={Xiaosong Ma and Stefan Zotter and Johannes Kofler and Rupert Ursin and Thomas Jennewein and vCaslav Brukner and Anton Zeilinger},
  journal={Nature Physics},
In 2000, Asher Peres put forward the paradoxical idea that entanglement could be produced after the entangled particles have been measured, even if they no longer exist. Researchers now experimentally demonstrate this idea using four photons. 
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  • David Glick
  • Philosophy, Physics
    Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics
  • 2019
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