Why two-photon but not two photons?

被引:0
|
作者
Shih, YH [1 ]
Strekalov, DV [1 ]
Pittman, TD [1 ]
机构
[1] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21228 USA
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In his famous book, The Principles of Quantum Mechanics, Dirac: stated that "...photon... interferes only with itself. Interference between two different photons never occurs." However, two-photon interference has been demonstrated experimentally Was Dirac wrong? We report an new experiment in this paper. It demonstrated that two-photon interference can not be considered the interference of two photons. "Two-photon" is not two photons. Two-photon is a single entity, which is just like a photon. We may call it biphoton. Dirac was correct. Biphoton interferes only with itself.
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页码:411 / 419
页数:3
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