论文标题
两国量子系统的相干控制技术:比较研究
Coherent control techniques for two-state quantum systems: A comparative study
论文作者
论文摘要
我们使用六种流行的连贯控制技术来评估尝试产生两态量子系统的指定相干变化时发生的各种错误来源:共振激发,绝热关注,复合绝热通道,通用的复合脉冲,与绝热性的快速曲线,与绝热性和单相脉冲。作为误差源,我们考虑空间强度分布,传输时间变化,不均匀宽扩大,多普勒拓宽,不需要的chir和形状误差。对于各种误差类型,不同的技术是表现最好的,但总体而言,我们发现通用复合脉冲的性能最稳定,并且与所有其他程序相比,它对错误最有抵抗力。
We evaluate various sources of errors that occur when attempting to produce a specified coherent change of a two-state quantum system using six popular coherent control techniques: resonant excitation, adiabatic following, composite adiabatic passage, universal composite pulses, shortcut to adiabaticity, and single-shot shaped pulses. As error sources we consider spatial intensity distribution, transit time variation, inhomogeneous broadening, Doppler broadening, unwanted chirp and shape errors. For the various error types different techniques emerge as the best performers but overall, we find that universal composite pulses perform most consistently and are most resilient to errors compared to all other procedures.