标题： 里德伯原子中电磁感应透明的快速响应特性 显示英文标题

标题： Fast-Responding Property of Electromagnetically Induced Transparency in Rydberg Atoms

摘要： 我们研究了冷里德伯原子气体中电磁诱导透明（EIT）的瞬态光学响应特性。 我们表明，系统的瞬态行为和稳态EIT谱强烈依赖于里德伯相互作用。 特别是，里德伯-EIT的响应速度可以比没有里德伯相互作用的传统EIT快五倍（甚至更高）。 为了比较，考虑了两种不同的理论方法（即两原子模型和多原子模型），结果表明，里德伯阻塞效应在提高里德伯-EIT响应速度方面起着重要作用。 在这里通过使用强而可调的里德伯相互作用实现的快速响应里德伯-EIT不仅有助于增强对里德伯原子多体动力学的理解，而且在利用里德伯原子进行量子信息处理的实际应用中也非常有用。 显示英文摘要

摘要： We investigate the transient optical response property of an electromagnetically induced transparency (EIT) in a cold Rydberg atomic gas. We show that both the transient behavior and the steady-state EIT spectrum of the system depend strongly on Rydberg interaction. Especially, the response speed of the Rydberg-EIT can be five-times faster (and even higher) than the conventional EIT without the Rydberg interaction. For comparison, two different theoretical approaches (i.e. two-atom model and many-atom model) are considered, revealing that Rydberg blockade effect plays a significant role for increasing the response speed of the Rydberg-EIT. The fast-responding Rydberg-EIT by using the strong, tunable Rydberg interaction uncovered here is not only helpful for enhancing the understanding of the many-body dynamics of Rydberg atoms but also useful for practical applications in quantum information processing by using Rydberg atoms.