Coalescence and Anti-Coalescence Interference of Two-Photon Wavepacket in a Beam Splitter

Chin. Phys. Lett.

2004, Vol. 21

Issue (2): 302-305 DOI:

Original Articles

Coalescence and Anti-Coalescence Interference of Two-Photon Wavepacket in a Beam Splitter

WANG Kai-Ge;YANG Guo-Jian

Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875

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WANG Kai-Ge, YANG Guo-Jian 2004 Chin. Phys. Lett. 21 302-305

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Abstract We study theoretically the interference of a two-photon wavepacket in a beam splitter. We find that the spectrum symmetry for the two-photon wavepacket dominates the perfect coalescence and anti-coalescence interference. The coalescence interference is unrelated to photon entanglement. Only the anti-coalescence interference has evidence of photon entanglement. We prove that the two-photon wavepacket with an anti-symmetric spectrum is transparent to pass the 50/50 beam splitter, showing perfect anti-coalescence interference.

Keywords: 42.50.Dv 03.65.Ud 42.50.Ar

Published: 01 February 2004

PACS:	42.50.Dv	(Quantum state engineering and measurements)
	03.65.Ud	(Entanglement and quantum nonlocality)
	42.50.Ar

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I2/0302

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