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arXiv 2103.01386quant-ph
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基于不变量最优控制的鲁棒受激拉曼绝热过渡

Robust stimulated Raman shortcut-to-adiabatic passage by invariant-based optimal control

Xue-Ke Song, Fei Meng, Bao-Jie Liu, Dong Wang, Liu Ye, Man-Hong Yung

摘要:

在基于绝热演化的三能级量子系统中,受激拉曼绝热通道(STIRAP)是一种在两个具有相同宇称的离散量子态之间精确转移布居数的有效方法。该技术在物理、化学等许多领域具有广泛的理论和实验应用。在这里,我们提出了一个普遍强大的方法来加快STIRAP与不变量为基础的捷径绝热。通过对动力学过程的控制,我们反求出了一族哈密顿量,该哈密顿量可以实现从第一层到第三层的快速、准确的布居转移,同时系统误差在总体上得到了很大的抑制.此外,详细的权衡之间的关系的中间态的人口和拉比频率的振幅在转移过程中示出。这些结果为今后量子信息处理中操纵三能级量子系统的演化提供了一条最佳途径。

英文摘要:

The stimulated Raman adiabatic passage (STIRAP) shows an efficient technique that accurately transfers population between two discrete quantum states with the same parity, in three-level quantum systems based on adiabatic evolution. This technique has widely theoretical and experimental applications in many fields of physics, chemistry, and beyond. Here, we present a generally robust approach to speed up STIRAP with invariant-based shortcut to adiabaticity. By controlling the dynamical process, we inversely design a family of Hamiltonians that can realize fast and accurate population transfer from the first to the third level, while the systematic error is largely suppressed in general. Furthermore, a detailed trade-off relation between the population of the intermediate state and the amplitudes of Rabi frequencies in the transfer process is illustrated. These results provide an optimal route toward manipulating the evolution of three-level quantum systems in future quantum information processing.

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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