论文标题
优化的几何形状用于合作光子储存的杂质，耦合到二维原子阵列
Optimized geometries for cooperative photon storage in an impurity coupled to a two-dimensional atomic array
论文作者
论文摘要
二维原子阵列的集体模式可以改变嵌入的原子杂质的辐射环境。我们通过比较所有非中心的Bravais晶格获得的有效杂质衰减率和额外的蜂窝晶格，分析了晶格几何学对杂质发射线宽的作用。我们证明，晶格几何形状在确定杂质的有效衰减速率方面起着至关重要的作用。特别是，我们发现最小的有效衰减速率出现在杂质最近的邻居数量最大的晶格中，并且最近邻居之间的不同距离数量很小。我们进一步表明，在杂质的间隙和替代位置之间的选择中，前者总是通过表现出较低的衰减速率和更长的光子储存来获胜。对于间隙放置，我们确定晶格平面中最佳的杂质位置，这不一定在晶格plaquette的中心发现。
The collective modes of two-dimensional ordered atomic arrays can modify the radiative environment of embedded atomic impurities. We analyze the role of the lattice geometry on the impurity's emission linewidth by comparing the effective impurity decay rate obtained for all non-centered Bravais lattices and an additional honeycomb lattice. We demonstrate that the lattice geometry plays a crucial role in determining the effective decay rate for the impurity. In particular, we find that the minimal effective decay rate appears in lattices where the number of the impurity's nearest neighbours is maximal and the number of distinct distances among nearest neighbours is minimal. We further show that, in the choice between interstitial and substitutional placement of the impurity, the former always wins by exhibiting a lower decay rate and longer photon storage. For interstitial placements, we determine the optimal impurity position in the lattice plane, which is not necessarily found in the center of the lattice plaquette.
