[1] Gisin N, Ribordy G, Tittel W and Zbinden H 2002 Rev. Mod. Phys. 74 145 [2] Xu F H, Ma X F, Zhang Q, Lo H K and Pan J W 2020 Rev. Mod. Phys. 92 025002 [3] Wei K J, Li W, Tan H, Li Y, Min H, Zhang W J, Li H, You L X, Wang Z, Jiang X, Chen T Y, Liao S K, Peng C Z, Xu F H and Pan J W 2020 Phys. Rev. X 10 031030 [4] Yin J, Li Y H and Liao S K 2020 Nature 582 501 [5] Bennett C H and Brassard G 1984 Proceedings of IEEE International Conference on Computers, Systems, and Signal Processing, December 9-12, 1984, Bangalore, India, p. 175 [6] Ladd T D, Jelezko F, Laflamme R, Nakamura Y, Monroe C and O'Brien J L 2010 Nature 464 45 [7] Zhong H S, Wang H, Deng Y H, et al. 2020 Science 370 1460 [8] Bentivegna M, Spagnolo N, Vitelli C, Flamini F, Viggianiello N, Latmiral L, Mataloni P, Brod J D, Galvao F E, Crespi A, Ramponi R, Osellame R and Sciarrino F 2015 Sci. Adv. 1 e1400255 [9] Ciampini M A, Orieux A, Paesani S, Sciarrino F, Corrielli G, Crespi A, Ramponi R, Osellame R and Mataloni P 2016 Light: Sci. Appl. 5 e16064 [10] Shor P W 1994 Proceedings 35th Annual Symposium on Foundations of Computer Science, November 20-22, 1994, Santa Fe, NM, USA, p. 124 [11] Grover L K 1997 Phys. Rev. Lett. 79 325 [12] Ahluwalia D V 1994 Phys. Lett. B 339 4 [13] Huttner B, Muller A, Gautier J D, Zbinden H and Gisin N 1996 Phys. Rev. A 54 3783 [14] Raussendorf R, Browne D E and Briegel H J 2003 Phys. Rev. A 68 022312 [15] Kim Y S, Lee J C, Kwon O and Kim Y H 2012 Nat. Phys. 8 117 [16] Chen Z X, Li J L, Song Q C, Wang H, Zangi S M and Qiao C F 2017 Phys. Rev. A 96 062123 [17] Chen Z X, Wang H, Li J L, Song Q C and Qiao C F 2019 Sci. Rep. 9 5687 [18] Pan J W, Chen Z B, Lu C Y, Weinfurter H, Zeilinger A and Zukowski M 2012 Rev. Mod. Phys. 84 777 [19] Kwiat P G, Mattle K, Weinfurter H, Zeilinger A, VSergienko A and Shih Y 1995 Phys. Rev. Lett. 75 4337 [20] Bouwmeester D, Pan J W, Daniell M, Weinfurter H and Zeilinger A 1999 Phys. Rev. Lett. 82 1345 [21] Pan J W, Daniell M, Gasparoni S, Weihs G and Zeilinger A 2001 Phys. Rev. Lett. 86 4435 [22] Zhao Z, Chen Y A, Zhang A N, Yang T, Briegel H J and Pan J W 2004 Nature 430 54 [23] Walther P, Resch K J, Rudolph T, Schenck E, Weinfurter H, Vedral V, Aspelmeyer M and Zeilinger A 2005 Nature 434 169 [24] Lu C Y, Zhou X Q, Guhne O, Gao W B, Zhang J, Yuan Z S, Goebel A, Yang T and Pan J W 2007 Nat. Phys. 3 91 [25] Wieczorek W, Krischek R, Kiesel N, Michelberger P, Toth G and Weinfurter H 2009 Phys. Rev. Lett. 103 020504 [26] Prevedel R, Cronenberg G, Tame M S, Paternostro M, Walther P, Kim M S and Zeilinger A 2009 Phys. Rev. Lett. 103 020503 [27] Yao X C, Wang T X, Xu P, Lu H, Pan G C, Bao X H, Peng C Z, Lu C Y, Chen Y A and Pan J W 2012 Nat. Photon. 6 225 [28] Wang X L, Chen L K, Li W, Huang H L, Liu C, Chen C, Luo Y H, Su Z E, Wu D, Li Z D, Lu H, Hu Y, Jiang X, Peng C Z, Li L, Liu N L, Chen Y A, Lu C Y and Pan J W 2016 Phys. Rev. Lett. 117 210502 [29] Chen L K, Li Z D, Yao X C, Huang M, Li W, Lu H, Yuan X, Zhang Y B, Jiang X, Peng C Z, Li L, Liu N L, Ma X F, Lu C Y, Chen Y A and Pan J W 2017 Optica 4 77 [30] Zhong H S, Li Y, Li W, Peng L C, Su Z E, Hu Y, He Y M, Ding X, Zhang W J, Li H, Zhang L, Wang Z, You L X, Wang X L, Jiang X, Li L, Chen Y A, Liu N L, Lu C Y and Pan J W 2018 Phys. Rev. Lett. 121 250505 [31] Wang X L, Luo Y H, Huang H L, Chen M C, Su Z E, Liu C, Chen C, Li W, Fang Y Q, Jiang X, Zhang J, Li L, Liu N L, Lu C Y and Pan J W 2018 Phys. Rev. Lett. 120 260502 [32] Boixo S, Isakov S V, Smelyanskiy V N, Babbush R, Ding N, Jiang Z, Bremner M J, Martinis J M and Neven H 2018 Nat. Phys. 14 595 [33] Guo C, Liu Y, Xiong M, Xue S, Fu X, Huang A, Qiang X, Xu P, Liu J, Zheng S, Huang H, Deng M, Poletti D, Bao W S and Wu J J 2019 Phys. Rev. Lett. 123 190501 [34] Hangleiter D, Kliesch M, Eisert J and Gogolin C 2019 Phys. Rev. Lett. 123 190501) [35] Politi A, Cryan M J, Rarity J G, Yu S and O'Brien J L 2008 Science 320 646 [36] Wang J, Paesani S, Santagati R, Knauer S, Gentile A A, Wiebe N, Petruzzella M, O'Brien J L, Rarity J G, Laing A and Thompson M G 2017 Nat. Phys. 13 551 [37] Spring J B, Metcalf B J, Humphreys P C, Kolthammer W S, Jin X M, Barbieri M, Datta A, Nicholas T P, Langford N K, Kundys D, Gates J C, Smith B J, Smith P G R and Walmsley I A 2013 Science 339 798) [38] Wang J W, Sciarrino F, Laing A and Thompson M G 2020 Nat. Photon. 14 273 [39] Qiang X G, Zhou X Q, Wang J W, Wilkes C M, Loke T, O'Gara S, Kling L, Marshall G D, Santagati R, Ralph T C, Wang J B, O'Brien J L, Thompson M G and Matthews J C F 2018 Nat. Photon. 12 534 [40] Childs A M 2005 Quantum Physics 5 456 [41] Xing Z Y, Li Z H, Feng T F and Zhou X Q 2021 Acta Phys. Sin. 70 184207 (in Chinese) [42] Kang G, Kim S H, You J B, Lee D S, Yoon H, Ha Y G, Kim J H, Yoo D E, Lee D W, Youn C H, Yu K and Park H H 2019 IEEE Photon. Technol. Lett. 31 1685 [43] Sun J, Timurdogan E, Yaacobi A, et al. 2013 Nature 493 195 [44] Qiang X G, Loke T, Montanaro A, Aungskunsiri K, Zhou X Q, O'Brien J L, Wang J B and Matthews J C F 2016 Nat. Commun. 7 11511 [45] The splitting ratios of 10 MMIs on a test chip are measured and they all range from 52.19:47.81 to 52.98:47.02 |