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Quantum legitimacy of reversible gate and a new design of multiplier based on R gate

Chinese Physics B 2020年第5期29卷 101-106页

作者：葛庭宇张廷桂黄晓芬 School of Mathematics and Statistics Hainan Normal UniversityHaikou 571158China

Quantum full adders play a key role in the design of quantum computers.The efficiency of a quantum adder directly determines the speed of the quantum computer,and its complexity is closely related to the difficulty and the cost of building a quantum computer.The existed full adder based on R gate is a great design but it is not suitable to construct a quantum multiplier.We show the quantum legitimacy of some common reversible gates,then use R gate to propose a new design of a quantum full adder.We utilize the new designed quantum full adder to optimize the quantum multiplier which is based on R gate.It is shown that the new designed one can be optimized by a local optimization rule so that it will have lower quantum cost than before.

关键词： reversible gate quantum full adder quantum multiplier

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Nano-design of ultra-efficient reversible block based on quantum-dot cellular automata

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Frontiers of Information Technology & Electronic Engineering 2023年第3期24卷 447-456页

作者： Seyed Sajad AHMADPOUR Nima Jafari NAVIMIPOUR Mohammad MOSLEH Senay YALCIN Department of Computer Engineering Faculty of Engineering and Natural SciencesKadir Has UniversityIstanbul 34083Türkiye Materials and Energy Research Center Dezful BranchIslamic Azad UniversityDezful ***Iran Department of Computer Engineering Nisantasi UniversityIstanbul 34485Türkiye

reversible logic has recently gained significant interest due to its inherent ability to reduce energy dissipation,which is the primary need for low-power digital circuits.One of the newest areas of relevant study is reversible logic,which has applications in many areas,including nanotechnology,DNA computing,quantum computing,fault tolerance,and low-power complementary metal-oxide-semiconductor(CMOS).An electrical circuit is classified as reversible if it has an equal number of inputs and outputs,and a one-to-one relationship.A reversible circuit is conservative if the EXOR of the inputs and the EXOR of the outputs are equivalent.In addition,quantum-dot cellular automata(QCA)is one of the state-of-the-art approaches that can be used as an alternative to traditional technologies.Hence,we propose an efficient conservative gate with low power demand and high speed in this paper.First,we present a reversible gate called ANG(Ahmadpour Navimipour gate).Then,two non-resistant QCA ANG and reversible fault-tolerant ANG structures are implemented in QCA technology.The suggested reversible gate is realized through the Miller algorithm.Subsequently,reversible fault-tolerant ANG is implemented by the 2DW clocking scheme.Furthermore,the power consumption of the suggested ANG is assessed under different energy ranges(0.5Ek,1.0Ek,and 1.5Ek).Simulations of the structures and analysis of their power consumption are performed using QCADesigner 2.0.03 and QCAPro software.The proposed gate shows great improvements compared to recent designs.

关键词： Nanotechnology reversible logic Energy dissipation Quantum-dot cellular automata(QCA) reversible gate Miller algorithm

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