论文标题
快速缩放理论
Fast-forward scaling theory
论文作者
论文摘要
速度是进一步发展技术的关键。例如，量子技术（例如量子计算）需要对量子系统进行快速操纵，以克服变质的效果。但是，由于动态中缺乏简单的缩放属性和无限大的参数空间，因此控制量子动力学的速度通常非常困难。因此，基于对系统动力学特性的理解（例如非平凡缩放属性）的速度控制方案是非常可取的。最初开发了快进缩放理论（FFST），以提供一种加速，减速，停止和逆转量子系统动力学的方法。 FFST已被扩展，以加速各种系统的量子和经典的绝热动态，包括冷原子，内部分子状态，旋转和固态人造原子。本文介绍了FFST的基本概念，并回顾了最新的发展及其应用，例如快速的状态套餐，国家保护和离子分类。我们引入了一种最近从FFST派生的称为Trajectory Travel的方法。我们还指出了减速在量子技术中的重要性。
Speed is the key to further advances in technology. For example, quantum technologies, such as quantum computing, require fast manipulations of quantum systems in order to overcome the effect of decoherence. However, controlling the speed of quantum dynamics is often very difficult due to both the lack of a simple scaling property in the dynamics and the infinitely large parameter space to be explored. Therefore, protocols for speed control based on understanding on the dynamical properties of the system, such as non-trivial scaling property, are highly desirable. Fast-forward scaling theory (FFST) was originally developed to provide a way to accelerate, decelerate, stop and reverse the dynamics of quantum systems. FFST has been extended in order to accelerate quantum and classical adiabatic dynamics of various systems including cold atoms, internal state of molecules, spins and solid-state artificial atoms. This paper describes the basic concept of FFST and review the recent developments and its applications such as fast state-preparations, state protection and ion sorting. We introduce a method, called inter-trajectory travel, derived from FFST recently. We also point out the significance of deceleration in quantum technology.
