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A "Which Way" Experiment of Two-Photon Interference |
| WANG Qin;HUANG Yun-Feng;SUN Fang-Wen;ZHANG Yong-Sheng;GUO Guang-Can |
| Key Laboratory of Quantum Information, Department of Physics, University of Science and Technology of China, Hefei 230026 |
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| Cite this article: |
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WANG Qin, HUANG Yun-Feng, SUN Fang-Wen et al 2005 Chin. Phys. Lett. 22 335-338 |
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Abstract It is well known that the indistinguishability of particles causes interference. We give a "which way" experiment of two-photon interference marked with polarization. The result shows that the greater the distinguishability of the path by which two-photon passes, the lower the fringe visibility will be, and this phenomenon will disappear when the path becomes completely distinguishable.
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42.50.Dv
03.67.Hk
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Published: 01 February 2005
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| PACS: |
42.50.Dv
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(Quantum state engineering and measurements)
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03.67.Hk
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(Quantum communication)
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