Hong, Kang-Hee Jung, Jisung Cho, Young-Wook Han, Sang-Wook Moon, Sung Oh, Kyunghwan Kim, Yong-Su Kim, Yoon-Ho 2024-01-20T01:32:31Z 2024-01-20T01:32:31Z 2021-09-01 2017-05-01 1094-4087 https://pubs.kist.re.kr/handle/201004/122760 Photon anti-bunching, measured via the Hanbury-Brown-Twiss experiment, is one of the key signatures of quantum light and is tied to sub-Poissonian photon number statistics. Recently, it has been reported that photon anti-bunching or conditional sub-Poissonian photon number statistics can be obtained via second-order interference of mutually incoherent weak lasers and heralding based on photon counting [Phys. Rev. A 92, 033855 (2015); Opt. Express 24, 19574 (2016); https://arxiv.org/abs/1601.08161]. Here, we report theoretical analysis on the limits of manipulating conditional photon statistics via interference of weak lasers. It is shown that conditional photon number statistics can become super-Poissonian in such a scheme. We, however, demonstrate explicitly that it cannot become sub-Poissonian, i.e., photon anti-bunching cannot be obtained in such a scheme. We point out that incorrect results can be obtained if one does not properly account for seemingly negligible higher-order photon number expansions of the coherent state. (C) 2017 Optical Society of America English OPTICAL SOC AMER EXPERIMENTAL REALIZATION GENERATION COHERENT STATES ENTANGLEMENT Limits on manipulating conditional photon statistics via interference of weak lasers Article 10.1364/OE.25.010610 1 OPTICS EXPRESS, v.25, no.9, pp.10610 - 10621 OPTICS EXPRESS 25 9 10610 10621 scie scopus 000400665800102 2-s2.0-85018337965 Optics Optics Article EXPERIMENTAL REALIZATION GENERATION COHERENT STATES ENTANGLEMENT Photon statistics Coherent optical effects