Kim, Yong-Su Pramanik, Tanumoy Cho, Young-Wook Yang, Ming Han, Sang-Wook Lee, Sang-Yun Kang, Min-Sung Moon, Sung 2024-01-19T21:32:27Z 2024-01-19T21:32:27Z 2021-09-05 2018-10-29 1094-4087 https://pubs.kist.re.kr/handle/201004/120765 Bell state measurement (BSM) plays crucial roles in photonic quantum information processing. The standard linear optical BSM is based on Hong-Ou-Mandel interference where two photons meet and interfere at a beamsplitter (BS). However, a generalized two-photon interference is not based on photon-photon interaction, but interference between two-photon probability amplitudes. Therefore, it might be possible to implement BSM without interfering photons at a BS. Here, we investigate a linear optical BSM scheme which does not require two photon overlapping at a BS. By unleashing the two photon coexistence condition, it can be symmetrically divided into two parties. The symmetrically dividable property suggests an informational symmetrical BSM between remote parties without a third party. We also present that our BSM scheme can be used for Bell state preparation between remote parties without a third party. Since our BSM scheme can be easily extended to multiple photons, it can be useful for various quantum communication applications. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement English OPTICAL SOC AMER 2-PHOTON INTERFERENCE QUANTUM INTERFERENCE ENTANGLEMENT PHOTONS TELEPORTATION COMPUTATION SHARE Informationally symmetrical Bell state preparation and measurement Article 10.1364/OE.26.029539 1 OPTICS EXPRESS, v.26, no.22, pp.29539 - 29549 OPTICS EXPRESS 26 22 29539 29549 scie scopus 000448556300125 2-s2.0-85055847568 Optics Optics Article 2-PHOTON INTERFERENCE QUANTUM INTERFERENCE ENTANGLEMENT PHOTONS TELEPORTATION COMPUTATION SHARE 양자정보처리 양자얽힘 양자광학 양자통신