Demonstration of the complementarity of one- and two-photon interference

被引:66
作者
Abouraddy, AF [1 ]
Nasr, MB [1 ]
Saleh, BEA [1 ]
Sergienko, AV [1 ]
Teich, MC [1 ]
机构
[1] Boston Univ, Dept Elect & Comp Engn, Quantum Imaging Lab, Boston, MA 02215 USA
来源
PHYSICAL REVIEW A | 2001年 / 63卷 / 06期
关键词
D O I
10.1103/PhysRevA.63.063803
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The visibilities of second-order (one-photon) and fourth-order (two-photon) interference have been observed in a Young's double-slit experiment using light generated by spontaneous parametric down-conversion and a photon-counting intensified charge-coupled device camera. Coherence and entanglement underlie one- and two-photon interference, respectively. As the effective source size is increased, coherence is diminished while entanglement is enhanced, so that the visibility of one-photon interference decreases while that of two-photon interference increases. This experiment demonstrates the complementarity between one- and two-photon interference (coherence and entanglement) in the spatial domain.
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页数:6
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