Simultaneous measurement of wave and particle properties using modified Young's double-slit experiment

Kazufumi Sakai


The principle of complementarity is the foundation of quantum mechanics; its correctness has been verified by several studies. At present, the Englert-Greenberger duality relation is used for quantitative evaluations. We fabricated a new double slit experimental apparatus capable of simultaneously measuring the visibility and path-distinguishability, and measured the wave and particle properties.  We thus obtained results in disagreement with the principle of complementarity.


complementarity. wave-particle properties, Interferometer, double slit

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J. A. Wheeler and W. H. Zurek, Quantum Theory and Measurement (Princeton University Press, 1983)

R. P. Feynman, R. Leighton, and M. Sands, The Feynman Lectures on Physics (Addison-Wesley, Reading Mass., 1977)

M. O. Scully, B.-G. Englert, and H. Walther, Quantum optical tests of complementarity. Nature 351,111-116 (1991)

S. M. Tan and D. F. Walls, Loss of coherence in interferometry. Phys. Rev. A 47, 4663 (1993)

E. P. Storey, S. M. Tan, M. J. Collet, and D. F. Walls, Path detection and the uncertainty principle. Nature 367, 626-628 (1994)

B.-G. Englert, M. O. Scully, and H. Walther, Complementarity and uncertainty. Nature 375,367-368 (1995)

B.-G. Englert, Fringe Visibility and Which-way Inofrmation: An Inequality. Phys. Rev. Lett. 77, 2154-2157 (1996)

S. S. Afshar, Violation of the Principle of Complementariry and Its Implications. Proceedings of SPIE, Vol. 5866, 229-244 (2005)

S. S. Afshar, E. Flores, K. F. McDonald and E. Knoesel, Paradox in Wave-Particle Duality. Foundations of Physics 37, 295-305 (2007)

R. E. Kastner, Why the Afshar Experiment Does Not Refute Complementarity. Studies in History and Philosophy of Science Part B 36, 649-658 (2005)

R. E. Kastner, On Visibility in the Afshar Two-Slit Experiment. Foundations of Physics 39, 1139-1144 (2009)

O. Steuernagel, Afshar's experiment does not show a violation of complementarity. Foundations of Physics. 37, 1370 (2007)

D. D. Georgiev, Quantum histories and quantum complementarity. ISRN Mathematical Physics. 327278 (2012)

Tabish Qureshi , Modified Two-Slit Experiments and Complementarity. Journal of Quantum Information Science 2, 35-40 (2012)

Walborn, S. P.; et al.. Double-Slit Quantum Eraser. Phys. Rev. A 65, 033818 (2002)

Y. Aharonov, D. Z. Albert, L. Vaidman, How the result of a measurement of a component of the spin of a spin-1/2 particle can turn out to be 100. Phys. Rev. Lett. 60,1351 (1988)

Kocsis, S. et al. Observing the Average Trajectories of Single Photons in a Two-Slit Interferometer. Science 332, 1170-1173 (2011)


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