2007/01/22 by Shahriar S. Afshar, Eduardo Flores, Eduardo V. Flores +4 · 3 citations
Computer Science · Medicine · Physics and Astronomy · #Biofield Effects and Biophysics #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph
paper · pdf · doi:10.1007/s10701-006-9102-8
published as Found. Phys. 37, 295 (2007) · 18 pages, 1 figure
openalex publication_date 2007/01/22 · arxiv created 2007/02/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
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 Complementarity in cases where measurements techniques that avoid Heisenberg's uncertainty principle and quantum entanglement are employed. We further argue that the application of classical concepts of waves and particles as embodied in Complementarity leads to a logical inconsistency in the interpretation of this experiment.