论文标题
在三级lambda系统中，光速与光子电流的FANO因子之间的基本权衡
Fundamental trade-off between the speed of light and the Fano factor of photon current in three-level lambda systems
论文作者
论文摘要
电磁诱导的慢光介质是量子内存设备的有前途的系统，但是控制其噪声水平仍然是要克服的主要挑战。这项工作考虑了这种培养基的最简单模型，由三级$λ$ - 系统与Bosonic Bath相互作用，并在光的群体速度与辐射过渡引起的光子电流的FANO因子之间提供了新的基本权衡关系。考虑到新得出的lindblad型方程的稳态限制，我们发现光子电流的FANO因子在最小群的光速度下最大化为3，无论表征该介质的参数的详细值，它都具有真正的真实。
Electromagnetically induced slow-light medium is a promising system for quantum memory devices, but controlling its noise level remains a major challenge to overcome. This work considers the simplest model for such medium, comprised of three-level $Λ$-systems interacting with bosonic bath, and provides a new fundamental trade-off relation in light-matter interaction between the group velocity of light and the Fano factor of photon current due to radiative transitions. Considering the steady state limits of a newly derived Lindblad-type equation, we find that the Fano factor of the photon current maximizes to 3 at the minimal group velocity of light, which holds true universally regardless of detailed values of parameters characterizing the medium.
