论文标题
脉冲反向工程,用于强场互动
Pulse reverse-engineering for strong field-matter interaction
论文作者
论文摘要
我们提出了一种基于反向工程思想的强耦合方案中两级量子系统的演变的方案。连贯的控制场设计为沿用户预定义的进化轨迹驱动封闭和开放的两级量子系统,而无需使用旋转波近似(RWA)。作为具体的示例,我们表明可以实现完整的种群倒置,同等加权的相干叠加,甚至可以实现振荡的动力学。由于控制场和物质之间的耦合强度没有局限性,因此该方案对于加速所需的系统动力和快速量子信息处理等应用具有吸引力。
We propose a scheme to control the evolution of a two-level quantum system in the strong coupling regime based on the idea of reverse-engineering. A coherent control field is designed to drive both closed and open two-level quantum systems along user predefined evolution trajectory without utilizing the rotating-wave approximation (RWA). As concrete examples, we show that complete population inversion, an equally weighted coherent superposition, and even oscillationlike dynamics can be achieved. As there are no limitations on the coupling strength between the control field and matter, the scheme is attractive for applications such as accelerating desired system dynamics and fast quantum information processing.