کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8205218 1530585 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimal Lyapunov quantum control of two-level systems: Convergence and extended techniques
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Optimal Lyapunov quantum control of two-level systems: Convergence and extended techniques
چکیده انگلیسی
Taking a two-level system as an example, we show that a strong control field may enhance the efficiency of optimal Lyapunov quantum control but could decrease its control fidelity. A relationship between the strength of the control field and the control fidelity is established. An extended technique, which combines free evolution and external control, is proposed to improve the control fidelity. We analytically demonstrate that the extended technique can be used to design a control law for steering a two-level system exactly to one predetermined eigenstate of the free Hamiltonian. In such a way, the convergence of the extended optimal Lyapunov quantum control can be guaranteed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 378, Issues 16–17, 14 March 2014, Pages 1074-1080
نویسندگان
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