The use of beam and fiber splitters in quantum random number generators based on vacuum fluctuations
https://doi.org/10.17586/2220-8054-2016-7-2-378-383
Abstract
Quantum random number generators based on vacuum fluctuations produce truly random numbers that can be used for applications are requiring a high degree of randomness. A beam splitter with two inputs and two outputs is normally used in these systems. In this paper, mathematical descriptions were obtained for the use of such beam splitter and fiber Y-splitter in quantum random number generation systems with homodyne detection. We derived equations which allowed us to estimate the impact of the scheme parameters’ imperfection upon measurement results. We also obtained mathematical expressions, demonstrating the equivalence of quantum descriptions for a Y-splitter and a beam splitter with two inputs.
Supporting agencies: This work was partially financially supported by the Government of the Russian Federation (grant 074-U01).
About the Authors
A. E. Ivanova
ITMO University
Russian Federation
Russian Federation
Kronverkskiy, 49, St. Petersburg, 197101
S. A. Chivilikhin
ITMO University
Russian Federation
Russian Federation
Kronverkskiy, 49, St. Petersburg, 197101
A. V. Gleim
ITMO University
Russian Federation
Russian Federation
Kronverkskiy, 49, St. Petersburg, 197101
References
1. Scarany V., Bechmann-Pasquinucci H., et. al. The security of practical quantum key distribution. Rev. Mod. Phys., 2009, 81, P. 1301–1350.
2. Jennewein T., Achleitner U., et. al. A fast and compact quantum random number generator. Rev. Sci. Instrum., 2000, 71(4), P. 1675–1680.
3. Kwon O.,Cho Y.-W. , Kim Y.-H. Quantum random number generator using photon-number path entanglement. Appl. Opt., 2009, 48, P. 1774–1778.
4. 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.
5. 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.
6. 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.
7. Gabriel C., Wittmann C., et. al. A generator for unique quantum random numbers based on vacuum states. Nature Phot., 2010, 4, P. 711–715.
8. Ivanova A. E, Chivilikhin S. A, Popov I. Yu, Gleim A. V. On the possibility of using optical Y-splitter in quantum random number generation systems based on fluctuations of vacuum. Nanosyst.: Phys., Chem., Math., 2015, 6(1), P. 95–99.
Review
For citations:
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(2):378-383. https://doi.org/10.17586/2220-8054-2016-7-2-378-383
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