Realizing and controlling a long-lived slow light is of fundamental importance in physics and may find applications in quantum router and quantum information processing. In this work, we propose a feasible scheme to realize the slow light in a strontium atom-cavity system, in which the value of group delay can be continuously adjusted within a range of different Zeeman splittings and vacuum Rabi frequencies by varying the applied static magnetic field and the atom number instead of a strong coherent field. In our scheme, the major limitations of the slow-light structure, namely, dispersion and loss, can be effectively resolved, and so our scheme may help to achieve the practical application of slow light relevant to the optical communication network.

中文翻译：

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锶原子-腔系统中的磁场相关慢光

实现和控制长寿命慢光在物理学中具有重要意义，可能会在量子路由器和量子信息处理中找到应用。在这项工作中，我们提出了一种在锶原子-腔系统中实现慢光的可行方案，其中通过改变施加的静磁场，可以在不同塞曼分裂和真空拉比频率的范围内连续调整群延迟值。场和原子数，而不是强相干场。在我们的方案中，可以有效解决慢光结构的主要局限性，即色散和损耗，因此我们的方案可能有助于实现慢光在光通信网络中的实际应用。