A Study on 2-Dimensional 4-Dot 2-Electron QCA-Based Reversible-Circuit Design with Energy Dissipation Analysis

Since the scaling of archetypal transistors has extended its lowest point, the rational substitute for the complementary metal-oxide semiconductor (CMOS) technology to attain advance improvements in the circuits on the criterions of size, low power, and device density usage has turned into an imperative essential. In an extremely rapid expansion of VLSI technology, it is the requirement of the era to reach a consistent model with area and low-power consumption. Quantum-dot cellular automata (QCA) are a prospective nanotech archetype, which performs as a different resolution to regular CMOS that has several physical limitations and sets of circuits' bounds. QCA is an enticing nanotechnological paradigm because of its better switching frequency and faster-performing speed besides it comprise a novel approach for information transformation. This paper illustrates a new design of XNOR, TR, BVF gates, and 1-bit comparator by Feynman gate based on the QCA and CMOS technology, which is well organized compared with the earlier outline. To computer simulate and confirm the suggested gate, QCA designer and Microwind Lite engines are utilized. The quantum costs of the proposed typical circuits and their QCA designs are computed and compared that confirms that the proposed QCA designs have extremely low quantum cost compared to typical layouts. The power dissipation by the designs is estimated that confirms the prospect of QCA nanodevice performing as a substitute stage for the implementation of reversible circuits. The firmness of the proposed designs under thermal randomness is analysed, presenting the functioning efficacy of the designs. The designs have a propitious future in forming of nanoscopic-scale low-power consumption information transforming scheme and can be motivated advanced digital functions in QCA.