Unsharp particle-wave duality in a photon split-beam experiment
In a quantum mechanical two-slit experiment one can observe a single photon simultaneously as particle (measuring the path) and as wave (measuring the interference pattern) if the path and the interference pattern are measured in the sense of unsharp observables. These theoretical predictions are confirmed experimentally by a photon split-beam experiment using a modified Mach—Zehnder interferometer.
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- 1.N. Bohr, inAlbert Einstein: Philosopher-Scientist, P. A. Schilpp, ed. (Open Court, LaSalle, Illinois, 1949), p. 199.Google Scholar
- 2.W. K. Wootters and W. H. Zurek,Phys. Rev. D 19, 473 (1979).Google Scholar
- 3. (a)P. Busch,Phys. Rev. D 33, 2253 (1986);Google Scholar
- 3. (b)Found. Phys. 17, 905 (1987).Google Scholar
- 4.E. Beltrametti and G. Casinelli,The Logic of Quantum Mechanics (Addison-Wesley, Reading, Massachusetts, 1981), p. 31.Google Scholar
- 5.P. Mittelstaedt, inProceedings, Second Symposium on Foundations of Quantum Mechanics in the Light of New Technology (Tokyo 1986), M. Namikiet al., eds. (Physical Society of Japan, Tokyo, 1987).Google Scholar
- 6.D. Deutsch,Phys. Rev. Lett. 50, 631 (1983).Google Scholar