强场量子控制
Deterministic strong-field quantum control
摘要：
利用瞬态吸收光谱对超短脉冲与物质相互作用的全振幅和全相位特性，研究了强场量子态控制。使用一系列强延迟脉冲，其参数被定制以将系统引导到期望的量子态。我们展示了如何通过从可观测光谱中检索光-物质相互作用的所有量子特征来实验实现这种优化。这提供了强场对原子系统作用的完整表征，包括对可能未知的脉冲性质和原子结构的依赖性。该计划的精度和鲁棒性进行了测试，在周围的原子水平的存在下，影响系统的动态。
英文摘要：
Strong-field quantum-state control is investigated, taking advantage of the full---amplitude and phase---characterization of the interaction between matter and intense ultrashort pulses via transient-absorption spectroscopy. A sequence of intense delayed pulses is used, whose parameters are tailored to steer the system into a desired quantum state. We show how to experimentally enable this optimization by retrieving all quantum features of the light-matter interaction from observable spectra. This provides a full characterization of the action of strong fields on the atomic system, including the dependence upon possibly unknown pulse properties and atomic structures. Precision and robustness of the scheme are tested, in the presence of surrounding atomic levels influencing the system's dynamics.
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