Quantum-controlled cluster states
Quantum-controlled cluster states
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DOI：
10.1103/physreva.104.033713
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发表时间：
2020-12
影响因子：
2.9
通讯作者：
R. Barros;G. B. Alves;O. Pfister;A. Khoury
中科院分区：
文献类型：
--
作者：
R. Barros;G. B. Alves;O. Pfister;A. Khoury
量子光学团簇态由于其在基于测量的量子计算中的重要性而得到越来越多的研究。本文提出了一种新的制备量子控制团簇态的方法：用空间结构光泵浦光参量振荡器。我们表明，国家的最先进的技术，用于生产集群的光谱和时间域的结构光泵，它操纵的参数相互作用的空间模式耦合得到改善。我们说明了考虑二阶泵浦结构的方法，并表明，一个简单的模式旋转产生不同的集群状态，包括但不限于二维正方形和六边形晶格。我们还介绍了一种新的技术，用于产生非均匀的集群状态，并提出了一个简单的设置，其实施。
Quantum optical cluster states have been increasingly explored, in the light of their importance for measurement-based quantum computing. Here we set forth a new method for generating quantum controlled cluster states: pumping an optical parametric oscillator with spatially structured light. We show that state-of-the-art techniques for producing clusters in the spectral and temporal domains are improved by a structured light pump, which manipulates the spatial mode couplings in the parametric interaction. We illustrate the method considering a second-order pump structure, and show that a simple mode rotation yields different cluster states, including, but not limited to the two-dimensional square and hexagonal lattices. We also introduce a novel technique for generating non-uniform cluster states, and propose a simple setup for its implementation.