Chin. Phys. Lett.  2000, Vol. 17 Issue (10): 726-727    DOI:
Original Articles |
Fourth-Order Interference in Femtosecond Spontaneous Parametric Down-Conversion
JIANG Yun-Kun;SHI Bao-Sen;LI Jian;FAN Xiao-Feng;GUO Guang-Can
Laboratory of Quantum Communication and Quantum Computation, Department of Physics, University of Science and Technology of China, Hefei 230026
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JIANG Yun-Kun, SHI Bao-Sen, LI Jian et al  2000 Chin. Phys. Lett. 17 726-727
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Abstract We report a fourth-order interference experiment in which pairs of photons are produced in spontaneous parametric down-conversion pumped by femtosecond pulses interfere in a Hong-Ou-Mandel interferometer. The visibility of the interference is (64±4)%, exceeding the bound of 50% predicted by classical interference theory.
Keywords: 42.50.Dv      42.65.Ky     
Published: 01 October 2000
PACS:  42.50.Dv (Quantum state engineering and measurements)  
  42.65.Ky (Frequency conversion; harmonic generation, including higher-order harmonic generation)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2000/V17/I10/0726
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