标题： 通过受控的色散环境诱导非平凡的量子比特相干性 显示英文标题

标题： Inducing nontrivial qubit coherence through a controlled dispersive environment

摘要： 我们展示了Jaynes-Cummings模型的色散区域如何可作为研究开放量子系统的一种有价值工具。我们采用自下而上的方法构建一个保持量子比特能量并诱导多样化相干动力学的环境。然后，我们推导出一个用于量子比特相干性的简洁表达式，并在此应用于环境中有限数量的热激发模式的情况。我们还讨论了如何调整模型参数以促进量子比特相干性的短时间单调衰减(STMD)的产生。我们的结果为研究保持能量的开放系统动力学提供了一个广泛适用的平台，这完全在当前量子技术的能力范围内。 显示英文摘要

摘要： We show how the dispersive regime of the Jaynes-Cummings model may serve as a valuable tool to the study of open quantum systems. We employ it in a bottom-up approach to build an environment that preserves qubit energy and induces varied coherence dynamics. We then present the derivation of a compact expression for the qubit coherence, applied here to the case of a finite number of thermally populated modes in the environment. We also discuss how the model parameters can be adjusted to facilitate the production of short-time monotonic decay (STMD) of the qubit coherence. Our results provide a broadly applicable platform for the investigation of energy-conserving open system dynamics which is fully within the grasp of current quantum technologies.