A1 Journal article (refereed)
Optimization and performance investigation of 1-Toffoli gate quantum full adders for spin-torque-based n-qubit architecture (2024)

Kulkarni, A., Haghparast, M., & Kaushik, B. K. (2024). Optimization and performance investigation of 1-Toffoli gate quantum full adders for spin-torque-based n-qubit architecture. Optical and Quantum Electronics, 56, Article 14. https://doi.org/10.1007/s11082-023-05597-9

JYU authors or editors

Publication details

All authors or editors: Kulkarni, Anant; Haghparast, Majid; Kaushik, Brajesh Kumar

Journal or series: Optical and Quantum Electronics

ISSN: 0306-8919

eISSN: 1572-817X

Publication year: 2024

Publication date: 23/11/2023

Volume: 56

Article number: 14

Publisher: Springer

Publication country: United Kingdom

Publication language: English

DOI: https://doi.org/10.1007/s11082-023-05597-9

Publication open access: Openly available

Publication channel open access: Partially open access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/92755

Abstract

Quantum computing (QC) is suitable for reversible computing due to its inherent parallel processing ability and fast speed. It also helps to address the issue of high-power dissipation in classical computing. Moreover, QC gates are the sequence of elementary operations such as single-qubit rotation and two-qubit entanglement. Elementary quantum operations are required to be reduced for the realization of complex computing. In this paper, optimization of 1-Tofoli gate-based quantum full adders (QFAs) in terms of the number of elementary operations with the help of quantum library {Ry, Rz, √ SWAP} is carried out. Moreover, the performance of two diferent 1-Tofoli QFAs is investigated in terms of execution time, fdelity, and number of electrons required to realize the QFAs. Improvement in fdelity is 0.7% and 0.57% for QFA1 and QFA2, respectively, compared to the fdelity of 2-Tofoli QFA. A 9.97% increase in execution time is mandatory for the QFA2 compared to QFA1. The QFA2 takes 5% more number of electrons in comparison to QFA1.

Keywords: quantum computing; data processing

Free keywords: quantum computing; quantum gates; quantum circuit optimization; reversible computing; spin-torque

Contributing organizations

Ministry reporting: Yes

Reporting Year: 2024

Preliminary JUFO rating: 1