Quantum analysis on the four-photon interference

• 来源期刊: 中国物理B（英文版）
• 关键词: quantum interference four photons spontaneous parametric down conversion
• 年，卷（期）: 2008,（1）
• 页码范围: 194-198
• 页数: 5页
• 语种: 英文

摘要

We present a theory for quantum interference of four photons generated by spontaneous parametric downconversion. Detailed investigation of the dependence of fourfold coincidence count rate on time delay between the incident and the reflective pump laser pulses is carried out.Gaussian type dependence is found,and good agreementbetween our theoretical results and experimental data reported in the literature is achieved.