中国物理B ›› 2020, Vol. 29 ›› Issue (5): 50305-050305.doi: 10.1088/1674-1056/ab7d9d

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Quantum legitimacy of reversible gate and a new design of multiplier based on R gate

Tingyu Ge(葛庭宇), Tinggui Zhang(张廷桂), Xiaofen Huang(黄晓芬)   

  1. School of Mathematics and Statistics, Hainan Normal University, Haikou 571158, China
  • 收稿日期:2020-01-10 修回日期:2020-02-21 出版日期:2020-05-05 发布日期:2020-05-05
  • 通讯作者: Tinggui Zhang E-mail:tinggui333@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11861031).

Quantum legitimacy of reversible gate and a new design of multiplier based on R gate

Tingyu Ge(葛庭宇), Tinggui Zhang(张廷桂), Xiaofen Huang(黄晓芬)   

  1. School of Mathematics and Statistics, Hainan Normal University, Haikou 571158, China
  • Received:2020-01-10 Revised:2020-02-21 Online:2020-05-05 Published:2020-05-05
  • Contact: Tinggui Zhang E-mail:tinggui333@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11861031).

摘要: Quantum full adders play a key role in the design of quantum computers. The efficiency of a quantum adder directly determines the speed of the quantum computer, and its complexity is closely related to the difficulty and the cost of building a quantum computer. The existed full adder based on R gate is a great design but it is not suitable to construct a quantum multiplier. We show the quantum legitimacy of some common reversible gates, then use R gate to propose a new design of a quantum full adder. We utilize the new designed quantum full adder to optimize the quantum multiplier which is based on R gate. It is shown that the new designed one can be optimized by a local optimization rule so that it will have lower quantum cost than before.

关键词: reversible gate, quantum full adder, quantum multiplier

Abstract: Quantum full adders play a key role in the design of quantum computers. The efficiency of a quantum adder directly determines the speed of the quantum computer, and its complexity is closely related to the difficulty and the cost of building a quantum computer. The existed full adder based on R gate is a great design but it is not suitable to construct a quantum multiplier. We show the quantum legitimacy of some common reversible gates, then use R gate to propose a new design of a quantum full adder. We utilize the new designed quantum full adder to optimize the quantum multiplier which is based on R gate. It is shown that the new designed one can be optimized by a local optimization rule so that it will have lower quantum cost than before.

Key words: reversible gate, quantum full adder, quantum multiplier

中图分类号:  (Quantum information)

  • 03.67.-a
02.20.Hj (Classical groups) 03.65.-w (Quantum mechanics)