论文标题
与时间相关联轴器的巨型原子
Giant atoms with time-dependent couplings
论文作者
论文摘要
我们研究了一个两级巨型原子的衰减动力学，该原子与时间相关的耦合强度耦合到波导。在无法忽略延迟效应的非马克维亚政权中，我们表明原子的动力学取决于早期的原子波导耦合强度。这样一来，人们就可以根据适当的耦合调制来量身定制巨型原子的衰减动力学，甚至可以实现固定的人群复兴。此外，我们证明了使用周期性耦合淬灭的巨型原子模型中模拟量子Zeno和量子抗Zeno效应的可能性。这些结果在量子信息处理和量子网络工程中具有潜在的应用。
We study the decay dynamics of a two-level giant atom that is coupled to a waveguide with time-dependent coupling strengths. In the non-Markovian regime where the retardation effect cannot be ignored, we show that the dynamics of the atom depends on the atom-waveguide coupling strengths at an earlier time. This allows one to tailor the decay dynamics of the giant atom and even realize a stationary population revival with appropriate coupling modulations. Moreover, we demonstrate the possibility of simulating the quantum Zeno and quantum anti-Zeno effects in the giant-atom model with periodic coupling quenches. These results have potential applications in quantum information processing and quantum network engineering.
