A ``Which Way'' Experiment of Two-Photon Interference
Qin Wang, Huang Yun-Feng, Sun Fang-Wen, Zhang Yong-Sheng, Guo Guang-Can · Chinese Physics Letters · 2005
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.