Can two-photon interference be considered the interference of two photons?

被引:195
|
作者
Pittman, TB [1 ]
Strekalov, DV [1 ]
Migdall, A [1 ]
Rubin, MH [1 ]
Sergienko, AV [1 ]
Shih, YH [1 ]
机构
[1] NATL INST STAND & TECHNOL,RADIOMETR PHYS DIV,GAITHERSBURG,MD 20899
关键词
D O I
10.1103/PhysRevLett.77.1917
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on a ''postponed compensation'' experiment in which the observed two-photon entangled state interference cannot be pictured in terms of the overlap of the two individual photon wave packets of a parametric down-conversion pair on a beam splitter. In the sense of a quantum eraser, the distinguishability of the different two-photon Feynman amplitudes leading to a coincidence detection is removed by delaying the compensation until after the output of an unbalanced two-photon interferometer.
引用
收藏
页码:1917 / 1920
页数:4
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