Interference and correlation of two independent photons
Interference and correlation of two independent photons
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DOI：
10.1140/epjd/e2002-00236-6
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发表时间：
2003-02-01
影响因子：
1.8
通讯作者：
Abram, I
中科院分区：
文献类型：
--
作者：
Bylander, J;Robert-Philip, I;Abram, I
当两个独立的光子同时入射到分束器上时，它们可以表现出双光子干涉(即合并成双光子状态)，其方式类似于通过简并的参数荧光产生的双光子。然而，退相过程的存在通过相干时间与发射体寿命的比率来降低干涉对比度(即合并的概率)。
Two independent photons, produced through the spontaneous emission of two separate emitters subject to uncorrelated dephasing processes, can display two-photon interference (i.e. coalescence into a two-photon state) when they are incident simultaneously on a beamsplitter, in a manner analogous to that of twin photons produced through degenerate parametric fluorescence. The presence of dephasing processes, however, reduces the interference contrast (i.e. the probability of coalescence), by the ratio of the coherence time to the lifetime of the emitter.