Strong field quantum control by selective population of dressed states
Strong field quantum control by selective population of dressed states
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DOI：
10.1088/1464-4266/7/10/010
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发表时间：
2005-09
期刊：
影响因子：
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通讯作者：
M. Wollenhaupt;A. Präkelt;C. Sarpe-Tudoran;D. Liese;T. Baumert
中科院分区：
文献类型：
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作者：
M. Wollenhaupt;A. Präkelt;C. Sarpe-Tudoran;D. Liese;T. Baumert
利用飞秒锁相脉冲对研究了钾原子在强激光场中的动力学行为，以探讨强场量子控制的物理机制。测量了光电子能谱中奥特勒-汤斯（AT）双峰的结构，分析了瞬态过程。分析表明，其物理机制是基于选择性缀饰态布居（SPODS）。最后给出了SPODS闭环优化的实验结果。还提出了对量子信息的影响的消相干测量的应用。
We study the dynamics of potassium atoms in intense laser fields using femtosecond phase-locked pulse pairs in order to extract physical mechanisms of strong field quantum control. The structure of the Autler–Townes (AT) doublet in the photoelectron spectra is measured to analyse transient processes. The analysis shows that the physical mechanism is based on the selective population of dressed states (SPODS). Experimental results of closed loop optimization of SPODS are presented in addition. Applications to decoherence measurements with implications for quantum information are also proposed.