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Optical random‐bit generator employing quantum and chaotic dynamics
Author(s) -
Ramos Rubens Viana,
Giraudo Elvio César
Publication year - 2003
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.11208
Subject(s) - randomness , random number generation , chaotic , generator (circuit theory) , computer science , pseudorandom number generator , nonlinear system , randomness tests , electronic engineering , cryptography , bit (key) , noise (video) , algorithm , microwave , random variable , statistical physics , mathematics , telecommunications , quantum mechanics , physics , engineering , power (physics) , artificial intelligence , statistics , image (mathematics) , computer security
Random‐bit generators, working as noise generators and producing keys for cryptography's algorithms are very useful in tests of communication links. However, a truly random sequence can be obtained only if a certain physical variable that obeys a certain statistical rule is used. In this paper we show two possible optical setups for a random‐bit generator. They are based on nonlinear quantum dynamics. Their main properties are shown analytically by using numerical simulations. We then use randomness tests to infer the quality of the bit sequences generated by the nonlinear system. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 338–342, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11208