Paradox in Wave-Particle Duality

  title={Paradox in Wave-Particle Duality},
  author={Shahriar S. Afshar and Eduardo V. Flores and Keith F. McDonald and Ernst Knoesel},
  journal={Foundations of Physics},
We report on the simultaneous determination of complementary wave and particle aspects of light in a double-slit type “welcher-weg” experiment beyond the limitations set by Bohr’s Principle of Complementarity. Applying classical logic, we verify the presence of sharp interference in the single photon regime, while reliably maintaining the information about the particular pinhole through which each individual photon had passed. This experiment poses interesting questions on the validity of… 
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