基于Lyapunov控制方法的量子C–NOT门的实现
Realization of quantum C–NOT gates based on the Lyapunov control method
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DOI编号  10.7641/CTA.2019.18075
  2019,36(8):1296-1303
中文关键词  C–NOT门  Cartan分解  Lyapunov控制方法
英文关键词  C–NOT gate  Cartan decomposition  Lyapunov control method
基金项目  Supported by the National Natural Science Foundation of China (61573330), the National Natural Science Foundation of International (Regional) Cooperation and Exchanges Project (61720106009) and the Chinese Academy of Sciences (CAS) and the World Academy of Sciences (TWAS).
学科分类代码  
作者单位
NOURALLAH Ghaeminezhad 中国科学技术大学 
丛爽 中国科学技术大学 
双丰 中国科学院智能机械研究所 
中文摘要
      本文研究了量子C–NOT门的制备. Cartan分解和Lyapunov控制方法用于设计实现C–NOT门的两个量子位操 作的控制手段. 数值仿真实验表明, 针对所设计的控制律, 若给定合适的控制参数, 每个单量子比特旋转在所考虑的轴 周围具有较小的偏差, 并且在1.68 a.u.
英文摘要
      The preparation of the quantum C–NOT gate is studied in this paper. The Cartan decomposition and the Lyapunov control methods are used to design the control laws for two single-qubit operations in realizing the C–NOT gate. The numerical simulation experiments show that for some proper control parameters in the designed control laws, each single qubit rotation has less deviation around the considered axis, and the total Fidelity of the system can achieve to 1, after 1.68 a.u..