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Low Cost Quantum Realization of Reversible Multiplier Circuit

Author(s): M.S. Islam | M.M. Rahman | Z. Begum | M.Z. Hafiz

Journal: Information Technology Journal
ISSN 1812-5638

Volume: 8;
Issue: 2;
Start page: 208;
Date: 2009;
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Keywords: quantum cost | garbage outputs | reversible logic circuits | Reversible logic gates | reversible multiplier circuit

Irreversible logic circuits dissipate heat for every bit of information that is lost. Information is lost when the input vector can not be uniquely recovered from the output vector. Theoretically reversible logic dissipates zero power since the input vector of reversible circuit can be uniquely recovered from the output vector. Reversible computation has applications in digital signal processing, low power CMOS design, DNA computing and quantum computing. This study presents an overview of the well-known reversible gates and discuss about their quantum implementation. A new PFAG gate and its quantum implementation are presented. Finally, this study proposes a novel low cost quantum realization of reversible multiplier circuit and compares its superiority with the existing counterparts.
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