Engineering spatial coherence in lattices of polariton condensates
Engineering spatial coherence in lattices of polariton condensates
复制标题
极化子凝聚晶格的工程空间相干性
DOI：
10.1364/optica.409976
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
P. Lagoudakis
中科院分区：
文献类型：
--
作者：
Julian D. Topfer;I. Chatzopoulos;H. Sigurdsson;T. Cookson;Y. G. Rubo;P. Lagoudakis
相干耦合宏观态的人工晶格是从解决困难的组合优化问题到模拟复杂的多体物理系统的应用的核心。问题的规模和复杂性与网格上的一致性程度成比例。虽然空间相干性的基本限制取决于耦合的性质和晶格参数，但通常是工程约束定义系统的大小。在这里，我们设计了极化激元凝聚晶格，对空间排列和凝聚密度进行了主动控制，导致近衍射极限发射，空间相干性超过每个单独凝聚体的大小近两个数量级。我们利用这些进步解开极化激元凝聚体的晶格几何形状之间的空间相关性的依赖。
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.
影响因子：
35
作者：
Dung, David;Kurtscheid, Christian;Klaers, Jan
通讯作者：
Klaers, Jan