Open Access

ARTICLE

Design of a Novel Signed Binary Subtractor Using Quantum Gates

by Arindam Banerjee^1,*, Aniruddha Ghosh², Mainuck Das²

1 ICFAI University Tripura, Kamalghat, Agartala, West Tripura, India
2 JIS College of Engineering, Kalyani, Nadia, West Bengal, 741235, India

* Corresponding Author: Arindam Banerjee. Email:

Journal of Quantum Computing 2022, 4(3), 121-133. https://doi.org/10.32604/jqc.2022.034059

Received 05 July 2022; Accepted 07 April 2023; Issue published 03 July 2023

Abstract

In this paper, focus has been given to design and implement signed binary subtraction in quantum logic. Since the type of operand may be positive or negative, therefore a novel algorithm has been developed to detect the type of operand and as per the selection of the type of operands, separate design techniques have been developed to make the circuit compact and work very efficiently. Two separate methods have been shown in the paper to perform the signed subtraction. The results show promising for the second method in respect of ancillary input count and garbage output count but at the cost of quantum cost.

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Keywords

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