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Computation using noise-based logic: Efficient string verification over a slow communication channel

: Kish, L.B.; Khatri, S.P.; Horváth, T.


The European physical journal. B, Condensed matter physics 79 (2011), Nr.1, S.85-90
ISSN: 1434-6028
Fraunhofer IAIS ()
noise-based logic; communication; algorithm

Utilizing the hyperspace of noise-based logic, we show two string verification methods with low communication complexity. One of them is based on continuum noise-based logic. The other one utilizes noise-based logic with random telegraph signals where a mathematical analysis of the error probability is also given. The last operation can also be interpreted as computing universal hash functions with noise-based logic and using them for string comparison. To find out with 10{?25} error probability that two strings with arbitrary length are different (this value is similar to the error probability of an idealistic gate in today's computer) Alice and Bob need to compare only 83 bits of the noise-based hyperspace.