Open AccessPhoton interference of second- and third-order correlation generated by two fluorescence sources
Author(s) -
Siqiang Zhang,
Faizan Raza,
Irfan Ahmed,
Wei Li,
Kaichao Jin,
Yanpeng Zhang
Publication year - 2019
Publication title -
journal of physics communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.407
H-Index - 17
ISSN - 2399-6528
DOI - 10.1088/2399-6528/ab3e7b
Subject(s) - photon , interference (communication) , physics , feynman diagram , path integral formulation , amplitude , wavelength , correlation , offset (computer science) , optics , third order , quantum mechanics , quantum , mathematics , telecommunications , channel (broadcasting) , geometry , computer science , philosophy , theology , programming language
We demonstrate the second- and third-order temporal correlation of two independent pseudo-thermal fluorescence (FL) sources. The two distinguishable sources become indistinguishable following the delay in Feynman’s path. The second- and third-order correlation demonstrates the strong bunching amplitude surrounded by variable oscillations and interfering side bands (beats). Specifically, three-photon bunching is overlapped by two-photon bunching, and further decomposed into multiple lower order correlation functions. Here, the strong interference arises from source and path indistinguishable terms (varying time offset, laser frequency and the bandwidth of FL sources); The support for this idea comes from Feynman’s path integral theory and sub wavelength interference for such kind of sources with appropriate detection schemes. Such phenomena may serve as modulation and carrier for quantum communication channels.