A Novel Full Subtractor /Full Adder Design in Quantum Cellular Automata

  • Mostafa Sadeghi Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
  • Keivan Navi Department of Computer Engineering, Shahid Beheshti University, G.C, Tehran, Iran.
  • Mehdi Dolatshahi Department of Electrical Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran.
Keywords: low power consumption, arithmetic circuit, Full Subtractor/Full adder, Quantum cellular automata (QCA)


Quantum cellular automata (QCA) is an alternative promising nanotechnology for semiconductor transistor based technology. QCA benefits from several characteristics, including high speed and low power usage, and could be employed in extremely dense structures. One of the important issues in arithmetic circuits is design of full subtractor/ full adder (FS/ FA), respectively. This paper proposed a 1-bit FS/ FA circuit on the basis of QCA technology that benefits from less cell counts compared to the best peer designs studied in the literature. As well as the mentioned feature, temperature analysis of suggested circuit indications that the presented design is tougher than previous works.  


[1] W. M. Arden, “The international technology roadmap for semiconductors—perspectives and challenges for the next 15 years,” Curr. Opin. Solid State Mater. Sci., vol. 6, no. 5, pp. 371–377, 2002.
[2] S. Angizi, S. Sarmadi, S. Sayedsalehi, and K. Navi, “Design and evaluation of new majority gate-based RAM cell in quantum-dot cellular automata,” Microelectronics J., vol. 46, no. 1, pp. 43–51, 2015.
[3] SS. Ahmadpour, M. Mosleh “A novel fault-tolerant multiplexer in quantum-dot cellular automata technology,” The Journal of Supercomputing 74 (9):4696-4716, 2018.
[4] S. Sarmadi, S. Sayedsalehi, M. Fartash, and S. Angizi, “A Structured Ultra-Dense QCA One-Bit Full-Adder Cell,” Am. Sci. Publ., vol. 4, no. 6, pp. 10–15, 2015.
[5] F. Ahmad, G. M. Bhat, H. Khademolhosseini, S. Azimi, S. Angizi, and K. Navi, “Towards single layer quantum-dot cellular automata adders based on explicit interaction of cells,” J. Comput. Sci., vol. 16, no. February, pp. 8–15, Sep. 2016.
[6] R. Farazkish, “A new quantum-dot cellular automata fault-tolerant full-adder,” J. Comput. Electron., vol. 14, no. 2, pp. 506–514, 2015.
[7] M. Abutaleb, “Robust and efficient QCA cell-based nanostructures of elementary reversible logic gates,” The Journal of Supercomputing 74 (11):6258-6274, 2018.
[8] M. Hayati and A. Rezaei, “Design of novel efficient adder and subtractor for quantum‐dot cellular automata,” Int. J. Circuit Theory Appl., vol. 43, no. 10, pp. 1446–1454, 2015.
[9] K. Navi, H. Mohammadi, and S. Angizi, “A Novel Quantum-Dot Cellular Automata Reconfigurable Majority Gate with 5 and 7 Inputs Support,” J. Comput. Theor. Nanosci., vol. 12, no. 3, pp. 399–406, Mar. 2015.
[10] S. Hashemi, MR. Azghadi,K. Navi, “Design and analysis of efficient QCA reversible adders,” The Journal of Supercomputing:1-20, 2018.
[11] S. Angizi, F. Danehdaran, S. Sarmadi, S. Sheikhfaal, N. Bagherzadeh, and K. Navi, “An Ultra-High Speed and Low Complexity Quantum-Dot Cellular Automata Full Adder,” J. Low Power Electron., vol. 11, no. 2, pp. 173–180, 2015.
[12] H. B. Sousan, M. Mosleh, and S. Setayeshi, “Designing and Implementing a Fast and Robust Full- Adder in Quantum-Dot Cellular Automata ( QCA ) Technology,” vol. 6, no. 1, pp. 27–45, 2015.
[13] SR. Heikalabad, MN. Asfestani, M . Hosseinzadeh “A full adder structure without cross-wiring in quantum-dot cellular automata with energy dissipation analysis,” The Journal of Supercomputing 74 (5):2018.
[14] A. Roohi, H. Khademolhosseini, S. Sayedsalehi, and K. Navi, “A symmetric quantum-dot cellular automata design for 5-input majority gate,” J. Comput. Electron., vol. 13, no. 3, pp. 701–708, 2014.
[15] K. Navi, A. Roohi, and S. Sayedsalehi, “Designing reconfigurable quantum-dot cellular automata logic circuits,” J. Comput. Theor. Nanosci., vol. 10, no. 5, pp. 1137–1146, 2013.
[16] S. Hashemi, M. Tehrani, and K. Navi, “An efficient quantum-dot cellular automata full-adder,” Sci. Res. Essays, vol. 7, no. 2, pp. 177–189, 2012.
[17] E. Taherkhani, MH. Moaiyeri, S. Angizi “Design of an ultra-efficient reversible full adder-subtractor in quantum-dot cellular automata,” Optik 142:557-563. 2017.
How to Cite
Sadeghi, M., Navi, K., & Dolatshahi, M. (2021). A Novel Full Subtractor /Full Adder Design in Quantum Cellular Automata. Majlesi Journal of Electrical Engineering, 15(1), 33-37. https://doi.org/https://doi.org/10.29252/mjee.15.1.33