Transformation rules for CNOT-based quantum circuits and their applications

  • Authors:
  • Kazuo Iwama;Shigeru Yamashita

  • Affiliations:
  • Graduate School of Informatics, Kyoto University, Yoshida Honmachi, Sakyo-ku, Kyoto 606-8501, Japan, Quantum Computation and Information project, ERATO, JST 406, Iseya-cho, Kamigyo-ku, Kyoto 602-0 ...;NTT Communication Science Laboratories, 2-4, Hikaridai, Seika-cho Soraku-gun, Kyoto 619-0237, Japan, Quantum Computation and Information project, ERATO, JST, 406, Iseya-cho, Kamigyo-ku, Kyoto 602- ...

  • Venue:
  • New Generation Computing - Quantum computing
  • Year:
  • 2003

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Abstract

This paper introduces a simple but nontrivial set of local transformation rules for designing Control-NOT(CNOT)-based combinatorial circuits. We also provide a proof that the rule set is complete, namely, for any two equivalent circuits, S1 and S2, there is a sequence of transformations, each of them in the rule set, which changes S1 to S2. Two applications of the rule set are also presented. One is to simulate Resolution with only polynomial overhead by the rule set. Therefore we can conclude that the rule set is reasonably powerful. The other is to reduce the cost of CNOT-based circuits by using the transformations in the rule set. This implies that the rule set might be used for the practical circuit design.