| Coalescence and Anti-Coalescence Interference of Two-Photon Wavepacket in a Beam Splitter |
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| 作者姓名： | 汪凯戈 杨国建 |
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| 作者单位： | DepartmentofPhysics,AppliedOpticsBeijingAreaMajorLaboratory,BeijingNormalUniversity,Beijing100875 |
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| 摘 要： | 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.
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| 关 键 词： | 双光子波包 光束分裂 干涉 对称光谱 量子光学 双光子纠缠 |
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