Efficient QCA Exclusive-or and Multiplexer Circuits Based on a Nanoelectronic-Compatible Designing Approach
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This study presents a novel approach to designing efficient QCA-based circuits based on Boolean expressions achieved from reconfiguration of five-input and three-input majority gates, and simple and dense multiplexer and Exclusive-or structures are implemented.Abstract:
Quantum-dot cellular automata (QCA) are a transistorless computation approach which encodes binary information via configuration of charges among quantum dots. The fundamental QCA logic primitives are majority and inverter gates which can be utilized to design various QCA circuits. This study presents a novel approach to designing efficient QCA-based circuits based on Boolean expressions achieved from reconfiguration of five-input and three-input majority gates. Whereas the multiplexer and Exclusive-or are the most important fundamental logical circuits in digital systems, designing efficient and single layer structures without coplanar cross-over wiring is advantageous in QCA technology. In order to demonstrate the efficiency and usefulness of the proposed approach, simple and dense multiplexer and Exclusive-or structures are implemented. The proposed designs have significant improvement in terms of area, complexity, latency, and gate count in comparison to previous designs. The correct logical functionalities of presented structures have been authenticated using QCA designer tool.read more
Citations
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Towards single layer quantum-dot cellular automata adders based on explicit interaction of cells
Firdous Ahmad,Ghulam M. Bhat,Hossein Khademolhosseini,Saeid Azimi,Shaahin Angizi,Keivan Navi +5 more
TL;DR: A new well-optimized structure for three-input Exclusive-OR gate (TIEO) is proposed that is based on cell interaction and a low complexity and ultra-high speed QCA one-bit full-adder cell is designed employing this structure.
Quantum-dot Cellular Automata Design Guideline
TL;DR: Several critical vulnerabilities in the structures of primitive QCA gates and QCA interconnects are shown, and a disciplinary guideline is proposed to prevent any additional plausible but malfunctioning QCA designs.
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A novel 3-input XOR function implementation in quantum dot-cellular automata with energy dissipation analysis
TL;DR: In this paper, a novel exclusive-OR (XOR) gate is presented, which requires only 12 cells and dissipates 12.11 µV energies at 1.0Ek tunneling energy level.
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A novel robust exclusive-OR function implementation in QCA nanotechnology with energy dissipation analysis
TL;DR: This paper presents a novel two-input Exclusive-OR gate implementation in quantum-dot cellular automata nanotechnology with minimum area and power dissipation as compared to previous designs and simulation results verified that the proposed design offers significant improvements in terms of area, latency, energy dissipation and structural implementation requirements.
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Towards ultra-efficient QCA reversible circuits
Amir Mokhtar Chabi,Arman Roohi,Hossein Khademolhosseini,Shadi Sheikhfaal,Shaahin Angizi,Keivan Navi,Ronald F. DeMara +6 more
TL;DR: The proposed reversible gate has a superb performance in implementing the QCA standard benchmark combinational functions in terms of area, complexity, power consumption, and cost function in comparison to the other reversible gates.
References
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TL;DR: This paper describes a project to create a novel design and simulation tool for quantum-dot cellular automata (QCA), namely QCADesigner, which has already been used to design full-adders, barrel shifters, random-access memories, etc.
Posted Content
On Quantum Cellular Automata
TL;DR: This work considers an approach to definition of a scheme with "history", valid for quantization both irreversible and reversible classical CA directly using local transition rules, using language of vectors in Hilbert spaces instead of C*-algebras.