论文标题
具有基态中性原子的光子阻滞
Photon blockade with ground-state neutral atoms
论文作者
论文摘要
我们表明，诱导的偶极 - 偶极相互作用允许在两级，基态中性原子的亚波长集合中进行光子阻滞。我们的协议依赖于单个$ n $原子的单兴趣的能量转移，该状态可以设计以产生有效的两级系统。连贯的泵会引起基态和集体明亮状态之间的拉比振荡，最多在所有原子之间共享一次激发。使用长期寿命且相对强大的杂散场的时钟过渡，以及在使用亚波长晶格的实验上的新前景，这使我们的建议成为量子信息协议的有前途的替代方案。
We show that induced dipole-dipole interactions allow for photon blockade in subwavelength ensembles of two-level, ground-state neutral atoms. Our protocol relies on the energy shift of the single-excitation, superradiant state of $N$ atoms, which can be engineered to yield an effective two-level system. A coherent pump induces Rabi oscillation between the ground state and a collective bright state, with at most a single excitation shared among all atoms. The possibility of using clock transitions that are long-lived and relatively robust against stray fields, alongside new prospects on experiments with subwavelength lattices, makes our proposal a promising alternative for quantum information protocols.
