西安电子科技大学学报

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量子元胞自动机可逆加法器电路

秦涛;蔡理;杨晓阔   

  1. (空军工程大学 理学院,陕西 西安 710051)
  • 收稿日期:2016-04-27 出版日期:2017-04-20 发布日期:2017-05-26
  • 作者简介:秦涛(1982-),男,空军工程大学博士研究生,E-mail: qintao911@163.com
  • 基金资助:

    国家自然科学基金资助项目(61172043, 61302022);陕西省自然科学基础研究计划资助项目(2013JQ8010)

Reversible adder circuits with the quantum-dot cellular automata

QIN Tao;CAI Li;YANG Xiaokuo   

  1. (Science College, Air Force Engineering Univ., Xi'an 710051, China)
  • Received:2016-04-27 Online:2017-04-20 Published:2017-05-26

摘要:

可逆逻辑的极低能耗特征使其在低功耗电路、量子计算机等领域具有重要的应用价值.设计了一种新型的三变量可逆逻辑门,可以完成择多计算、异或和同或计算功能.运用量子元胞自动机器件实现了该新型可逆逻辑门,设计了基于量子元胞自动机的可逆加法器电路.仿真结果表明,新设计的可逆逻辑门和加法器电路具有正确的功能.同时,采用新型可逆逻辑门设计的可逆加法器垃圾位及需要门数均减少了.

关键词: 可逆逻辑, 量子元胞自动机, 加法器, 择多逻辑门

Abstract:

The reversible logic is found to be very useful in fields of low power digital circuits and quantum computers due to its feature of ultra low power consumption. A new reversible logic gate (NRG) is proposed in this paper, which can perform majority computation, Exclusive-OR and Inclusive-OR operations. The proposed NRG is realized by quantum-dot cellular automata (QCA) technology, and reversible QCA adder circuits are designed with the proposed NRG. Simulation results with the QCA Designer tool indicate that the proposed NRG and reversible adder circuits perform well. Moreover, the reversible adder with the NRG requires fewer gates, while generating fewer garbage outputs.

Key words: reversible logic, quantum-dot cellular automata, adder, majority gate