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JACIII Vol.11 No.2 pp. 242-249
doi: 10.20965/jaciii.2007.p0242
(2007)

Paper:

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Emulating Qubits with Fuzzy Logic

M. Skander Hannachi, Yutaka Hatakeyama, and Kaoru Hirota

Department of Computational Intelligence and Systems Science, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, G3-49, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan

Received:
July 14, 2006
Accepted:
November 22, 2006
Published:
February 20, 2007
Creative Commons License
Keywords:
quantum computing, fuzzy logic, qubit, fuzzy hardware, Deutsch-Jozsa algorithm
Abstract
An approach for emulating quantum circuits using conventional analog hardware is presented based on the intuitive similarity between fuzzy logic and quantum superposition, as well as some geometrical analogies. This approach has the advantage of being easy to implement on dedicated hardware for parallel processing of membership functions and fuzzy inference, compared to conventional quantum computing, which requires quantum mechanical systems which are extremely sensitive to noise and difficult to extend to large scale systems. Using geometrical analogies and a suitable transformation, qubits are modeled as pairs of fuzzy membership functions evolving on the unit square and basic one qubit gates are modeled as transformations on this unit square. A fuzzy implementation of the one bit and two bit Deutsch-Jozsa algorithm is proposed. Physical implementation and advantages, such as the possibility of implementing nonlinear or non-unitary gates, as well as drawbacks of the proposed model compared to conventional quantum computing are shown.
Cite this article as:
M. Hannachi, Y. Hatakeyama, and K. Hirota, “Emulating Qubits with Fuzzy Logic,” J. Adv. Comput. Intell. Intell. Inform., Vol.11 No.2, pp. 242-249, 2007.
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