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arXiv 2012.15120quant-ph
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两态量子系统相干控制技术的比较研究

Coherent control techniques for two-state quantum systems: A comparative study

Boyan T. Torosov, Bruce W. Shore, Nikolay V. Vitanov

摘要:

我们评估各种来源的错误时,试图产生一个指定的相干变化的两个状态的量子系统使用六种流行的相干控制技术:共振激发,绝热以下,复合绝热通道,通用复合脉冲,捷径绝热,和单发脉冲。作为误差源,我们考虑空间强度分布,渡越时间变化,不均匀展宽,多普勒展宽,不必要的啁啾和形状误差。对于各种错误类型,不同的技术成为最佳执行者,但总体而言,我们发现通用复合脉冲执行最一致,并且与所有其他程序相比,对错误最有弹性。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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