Quantum simulation of 2D topological physics in a 1D array of optical cavities.
Quantum simulation of 2D topological physics in a 1D array of optical cavities.
复制标题
一维光学腔阵列中二维拓扑物理的量子模拟
DOI：
10.1038/ncomms8704
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发表时间：
2015-07-06
影响因子：
16.6
通讯作者：
Zhou ZW
中科院分区：
文献类型：
--
作者：
Luo XW;Zhou X;Li CF;Xu JS;Guo GC;Zhou ZW
光的轨道角动量是一个基本的光学自由度，其特征在于可以有无限数量的角动量态。尽管这种独特的性质在从光通信到量子信息的各种最近的研究中被证明是非常宝贵的，但它并没有被认为是有用的，甚至与模拟拓扑现象等非平凡的物理问题无关。与这种误解相反，我们证明了光的轨道角动量的量子模拟的理论上如何允许研究各种重要的二维拓扑物理在一个1D阵列的光学腔的难以置信的价值。这种应用程序的轨道角动量的光，不仅减少了所需的物理资源，但也增加了可行的规模的模拟，从而使人们有可能调查的重要课题，如边态输运和拓扑相变在一个小的模拟器准备立即实验探索。
Orbital angular momentum of light is a fundamental optical degree of freedom characterized by unlimited number of available angular momentum states. Although this unique property has proved invaluable in diverse recent studies ranging from optical communication to quantum information, it has not been considered useful or even relevant for simulating nontrivial physics problems such as topological phenomena. Contrary to this misconception, we demonstrate the incredible value of orbital angular momentum of light for quantum simulation by showing theoretically how it allows to study a variety of important 2D topological physics in a 1D array of optical cavities. This application for orbital angular momentum of light not only reduces required physical resources but also increases feasible scale of simulation, and thus makes it possible to investigate important topics such as edge-state transport and topological phase transition in a small simulator ready for immediate experimental exploration.