Quantum-dot Cellular Automata: An Efficient and Adroit Alternate to CMOS Technology
Sadat Riyaz, Vipan Kakkar · 2020
To the human ken, for designing and fabrication of computation devices, nanotechnology presents itself as one of the best alternatives to the conventional Complementary Semiconductor Metal Oxide (CMOS) technology which till now was considered to be the best solution but is now reaching a point of bereft. Quantum dot Cellular Automata, a technique developed out of application of quantum mechanics science is a truly remarkable innovation and is tremendously useful in fabrication process of new and future generation computers and digital circuits and devices. The most consummate and unparalleled properties of QCA, that stand it as the best for computers and digital electronics designs of next generation are exceptionally low power consumption (meV), immensely high frequency operation (THz), no short channel effect and incredibly smaller size(nm). In addition to this, reversible logic incorporation further enhances and enriches the desirable properties and efficiencies of Quantum Dot Cellular Automata. Quantum computing and IC fabrication industry the most profound candidates that aim at extensive use of Quantum dot Cellular Automata as a building brick of future and advanced frameworks. The basic and preliminary unit of Quantum dot designs is called cell. While as the basic building blocks of higher-grade designs are the NOT Gate (Inverter) and the Majority Gate. This paper provides a deep insight into the realm of Quantum-dot Cellular Automata. Efficient designs of the basic logic gates and the corresponding simulation results are also presented.