Adaptive coherent control using the von Neumann basis.
Adaptive coherent control using the von Neumann basis.
复制标题
使用冯诺依曼基础的自适应相干控制。
DOI：
10.1039/c0cp02318c
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Brixner
中科院分区：
文献类型：
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作者：
Stefan Ruetzel;Christoph Stolzenberger;F. Dimler;D. Tannor;T. Brixner
最近，我们引入了冯诺依曼表示作为飞秒激光脉冲的联合时频描述。本文证明了冯·诺伊曼基可以应用于相干控制中的自适应优化进化算法。我们进行了仿真，证明了与频域其他参数化相比的效率。我们还通过基函数约简说明了脉冲形状的简化。使用冯·诺伊曼基础的基本结构被保留而不会显著失去控制性能。在一个光学演示实验中，我们通过产生给定时间间隔的双脉冲来证明其实用性。时频空间的自适应控制对于需要在特定时间内特定跃迁频率的量子系统将特别有价值。
Recently we introduced the von Neumann representation as a joint time-frequency description for femtosecond laser pulses. Here we show that the von Neumann basis can be implemented into an evolutionary algorithm for adaptive optimization in coherent control. We perform simulations that demonstrate the efficiency compared to other parametrizations in the frequency domain. We also illustrate pulse-shape simplification by basis-function reduction. Essential structures using the von Neumann basis are retained without losing control performance significantly. In an optical demonstration experiment we show the practicality by producing double pulses with a given time separation. Adaptive control in time-frequency space will be especially valuable for quantum systems requiring specific transition frequencies at definite times.