najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2017-8-2-239-242najo-665Research ArticlePHYSICSФИЗИКАQuantum random number generator based on homodyne detectionIvanovaA. E.

Kronverkskiy, 49, St. Petersburg, 197101

newiva@mail.ruChivilikhinS. A.

Kronverkskiy, 49, St. Petersburg, 197101

sergey.chivilikhin@gmail.comGleimA. V.

Kronverkskiy, 49, St. Petersburg, 197101

ITMO UniversityRussian Federation20171208202582239242Copyright © Ivanova A.E., Chivilikhin S.A., Gleim A.V., 20252025Ivanova A.E., Chivilikhin S.A., Gleim A.V.Ivanova A.E., Chivilikhin S.A., Gleim A.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/665

A quantum random number generator (QRNG) based on the quantum nature of vacuum fluctuations allows one to obtain random bit sequences that can be used in applications that require a high degree of randomness. In that type of quantum random generation system, optical beam splitters with two inputs and two outputs are normally used. A comparison of Y-splitter and spatial beam splitters shows that for two types of optical splitters, the quantum mathematical description of output signals is identical. This allows the use of fiber Y-splitters in practical QRNG schemes. The possibility of generating true random bits was demonstrated experimentally by using quantum random number generator based on homodyne detection.

quantum random number generationbeam splitterY-splittervacuum fluctuationsThis work was financially supported by Government of Russian Federation, Grant 074-U01 and by the Ministry of Education and Science of Russian Federation (projects No. 14.578.21.0112, No. 02.G25.31.0229).ReferencesScarany V., Bechmann-Pasquinucci H., et al. The security of practical quantum key distribution. Rev. Mod. Phys., 2009, 81, P. 1301–1350.Scarany V., Bechmann-Pasquinucci H., et al. The security of practical quantum key distribution. Rev. Mod. Phys., 2009, 81, P. 1301–1350.Jennewein T., Achleitner U., et al. A fast and compact quantum random number generator. Rev. Sci. Instrum., 2000, 71 (4), P. 1675–1680.Jennewein T., Achleitner U., et al. A fast and compact quantum random number generator. Rev. Sci. Instrum., 2000, 71 (4), P. 1675–1680.Kwon O., Cho Y.-W., Kim Y.-H. Quantum random number generator using photon-number path entanglement. Appl. Opt., 2009, 48, P. 1774–1778.Kwon O., Cho Y.-W., Kim Y.-H. Quantum random number generator using photon-number path entanglement. Appl. Opt., 2009, 48, P. 1774–1778.Qi B., Chi Y.-M., et al. High-speed quantum random number generation by measuring phase noise of a single-mode laser. Optics Letters, 2010, 35, P. 312–314.Qi B., Chi Y.-M., et al. High-speed quantum random number generation by measuring phase noise of a single-mode laser. Optics Letters, 2010, 35, P. 312–314.Reidler I., Aviad Y., Rosenbluh M., Kanter I. Ultrahigh-Speed Random Number Generation Based on a Chaotic Semiconductor Laser. Phys. Rev. Lett., 2009, 103, P. 024102.Reidler I., Aviad Y., Rosenbluh M., Kanter I. Ultrahigh-Speed Random Number Generation Based on a Chaotic Semiconductor Laser. Phys. Rev. Lett., 2009, 103, P. 024102.Dynes J.F., Yuan Z.L, et al. A high speed, post-processing free, quantum random number generator. Appl. Phys. Lett., 2008, 93, P. 031109.Dynes J.F., Yuan Z.L, et al. A high speed, post-processing free, quantum random number generator. Appl. Phys. Lett., 2008, 93, P. 031109.Shen Y., Tian L., Zou H. Practical quantum random number generator based on measuring the shot noise of vacuum states. Phys. Rev. A, 2010, 81, P. 063814.Shen Y., Tian L., Zou H. Practical quantum random number generator based on measuring the shot noise of vacuum states. Phys. Rev. A, 2010, 81, P. 063814.Gabriel C., Wittmann C., et al. A generator for unique quantum random numbers based on vacuum states. Nature Phot., 2010, 4, P. 711–715.Gabriel C., Wittmann C., et al. A generator for unique quantum random numbers based on vacuum states. Nature Phot., 2010, 4, P. 711–715.Symul T., Assad S.M. and Lam P.K. Real time demonstration of high bitrate quantum random number generation with coherent laser light. Appl. Phys. Lett., 2011, 98, P. 231103.Symul T., Assad S.M. and Lam P.K. Real time demonstration of high bitrate quantum random number generation with coherent laser light. Appl. Phys. Lett., 2011, 98, P. 231103.Ivanova A.E., Chivilikhin S.A., Gleim A.V. Using of optical splitters in quantum random number generators, based on fluctuations of vacuum. Journal of Physics: Conference Series, 2016, 735, P. 012077(1–4).Ivanova A.E., Chivilikhin S.A., Gleim A.V. Using of optical splitters in quantum random number generators, based on fluctuations of vacuum. Journal of Physics: Conference Series, 2016, 735, P. 012077(1–4).Ivanova A.E., Chivilikhin S.A., Gleim A.V. The use of beam and fiber splitters in quantum random number generators based on vacuum fluctuations. Nanosystems: Physics, Chemistry, Mathematics, 2016, 7, P. 378–383.Ivanova A.E., Chivilikhin S.A., Gleim A.V. The use of beam and fiber splitters in quantum random number generators based on vacuum fluctuations. Nanosystems: Physics, Chemistry, Mathematics, 2016, 7, P. 378–383.Menezes A., van Oorschot P., Vanstone S. Handbook of Applied Cryptography. CRC Press, 1996, 816 p.Menezes A., van Oorschot P., Vanstone S. Handbook of Applied Cryptography. CRC Press, 1996, 816 p.

The authors declare that there are no conflicts of interest present.