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Reversible binary subtractor design using quantum dot-cellular automata 被引量:3
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作者 Jadav Chandra DAS Debashis DE 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2017年第9期1416-1429,共14页
In the field ofnanotechnology, quantum dot-cellular automata (QCA) is the promising archetype that can provide an alternative solution to conventional complementary metal oxide semiconductor (~MOS) circuit. QCA ha... In the field ofnanotechnology, quantum dot-cellular automata (QCA) is the promising archetype that can provide an alternative solution to conventional complementary metal oxide semiconductor (~MOS) circuit. QCA has high device density, high operating speed, and extremely low powex consumption. Reversible logic has widespread applications in QCA. Researchers have explored several designs of QCA-based reversible logic circuits, but still not much work has been reported on QCA-based reversible binary subtractors. The low power dissipation and high circuit density of QCA pledge the energy-efficient design of logic circuit at a nano-scale level. However, the necessity of too many logic gates and detrimental garbage outputs may limit the functionality of a QCA-based logic circuit. In this paper we describe the design and implementation of a DG gate in QCA. The universal nature of the DG gate has been established. The QCA building block of the DG gate is used to achieve new reversible binary subtractors. The proposed reversible subtractors have low quantum cost and garbage outputs compared to the existing reversible subtractors. The proposed circuits are designed and simulated using QCA Designer-2.0.3. 展开更多
关键词 Quantum dot-cellular automata (QCA) Reversible logic dg gate Binary subtractor Quantum cost
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