Recently it has been reported that photon anti-bunching can be obtained via second-order interference of mutually incoherent weak lasers under a proper post-selection scheme [Phys. Rev. A 92, 033855 (2015); Opt. Express 24, 19574 (2016)]. Here, we report theoretical analysis on the limits of manipulating conditional photon statistics of lasers via interference and post-selections.
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