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中国科学院大学学报 ›› 2006, Vol. 23 ›› Issue (5): 601-606.DOI: 10.7523/j.issn.2095-6134.2006.5.006

• 论文 • 上一篇    下一篇

基于最优搜索步长的封闭量子系统的控制

匡 森; 丛 爽   

  1. 中国科学技术大学自动化系, 合肥230027, scong@ustc.edu.cn
  • 收稿日期:1900-01-01 修回日期:1900-01-01 发布日期:2006-09-15

Optimal Control of Closed Quantum Systems Based on Optimized Search Step Length

KUANG Sen, CONG Shuang   

  1. Dept . of Automation , University of Science & Technology of China , Hefei 230027 , China, scong@ustc.edu.cn
  • Received:1900-01-01 Revised:1900-01-01 Published:2006-09-15

摘要: 利用变分法导出量子力学系统中一类最优控制问题的方程组,并使用具有最优搜索步长的开关变尺度法对最优控制问题进行数值迭代求解,最后在自旋1/2粒子上进行了系统仿真实验,验证了本文方法的有效性,同时对性能指标中参数的不同选择对整个最优控制效果影响的一般规律进行了分析。

关键词: 量子系统, 最优控制, 开关变尺度法

Abstract: Equations set of a class of optimal control problems are deduced in quantum mechanical systems based on variational approach,. Furthermore, an on-off variable metric numerical iterative arithmetic with optimized search step length is used to solve such an optimal problem. Finally, some simulation experiments on a spin-1/2 particle system are done. Experimental results demonstrate the validity of the method proposed. At the same time, the effectiveness of system control under different parameters in the performance index are analyzed.

Key words: quantum system, optimal control, on-off variable metric method

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