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

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

2003-01-14

arxiv.org/abs/quant-ph/0301060v1

Physics

Quantum Physics

5 pages, 2 figures

Scientific paper

10.1088/0256-307X/21/2/024

We study a general theory on the interference of two-photon wavepacket in a beam splitter (BS). We find that the perfect coalescence interference requires a symmetric spectrum of two-photon wavepacket which can be entangled or un-entangled. Furthermore, we introduce a two-photon wavepacket with anti-symmetric spectrum, which is related with photon entanglement and shows a perfect anti-coalescence effect. The theory present uniform and complete explanation to two-photon interference.

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