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Coincidence imaging and interference with coherent Gaussian beams |
| CAI Yang-jian, ZHU Shi-yao |
| Department of Physics, Hong Kong Baptist University, Hong Kong, China; Institute of Optics, Department of Physics, ZheJiang University, Hangzhou, 310027, China; |
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Abstract we present a theoretical study of coincidence imaging and interference with coherent Gaussian beams. The equations for the coincidence image formation and interference fringes are derived?from which it is clear that the imaging is due to the corresponding focusing in the two paths. The quality and visibility of the images and fringes can be high simultaneously. The nature of the coincidence imaging and interference between quantum entangled photon pairs and coherent Gaussian beams are different. The coincidence image with coherent Gaussian beams is due to intensity-intensity correspondence?a classical nature? while that with entangled photon pairs is due to the amplitude correlation a quantum nature.
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Issue Date: 05 June 2006
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