论文标题
工程空间连贯性北极凝结物的晶格
Engineering spatial coherence in lattices of polariton condensates
论文作者
论文摘要
相干耦合宏观状态的人工晶格是应用的核心，从解决硬组合优化问题到模拟复杂的多体物理系统。问题的大小和复杂性随着整个晶格的连贯性程度而定。尽管空间相干性的基本限制取决于耦合和晶格参数的性质，但通常是工程限制的定义系统大小。在这里，我们在空间排列和凝结物密度上进行了北极凝结物晶格，从而导致几乎划分的发射有限，而空间相干性则超过了近两个数量级的空间连贯性，而每个凝结物的大小。我们利用这些进步来阐明极化量凝结物在晶格几何形状上的空间相关性的依赖性。
Artificial lattices of coherently coupled macroscopic states are at the heart of applications ranging from solving hard combinatorial optimisation problems to simulating complex many-body physical systems. The size and complexity of the problems scales with the extent of coherence across the lattice. Although the fundamental limit of spatial coherence depends on the nature of the couplings and lattice parameters, it is usually engineering constrains that define the size of the system. Here, we engineer polariton condensate lattices with active control on the spatial arrangement and condensate density that result in near-diffraction limited emission, and spatial coherence that exceeds by nearly two orders of magnitude the size of each individual condensate. We utilise these advancements to unravel the dependence of spatial correlations between polariton condensates on the lattice geometry.
