论文标题
可扩展的多模纠缠基于有效挤压繁殖本征媒体的纠缠
Scalable multimode entanglement based on efficient squeezing of propagation eigenmodes
论文作者
论文摘要
光学域中量子信息的连续变量编码最近产生了量子计算和量子通信的较大的时间和光谱纠缠状态。我们介绍了一种基于在单片光子设备中传播本本特征相匹配的空间多部分纠缠的方案：二次非线性波导的阵列。从理论上讲，我们在自发的参数下调方案中证明了对多模量子网络有用的大型多部分纠缠状态的生成。我们的协议非常简单且健壮，因为它不依赖于样本的耦合，非线性或长度的特定值。
Continuous-variable encoding of quantum information in the optical domain has recently yielded large temporal and spectral entangled states instrumental for quantum computing and quantum communication. We introduce a protocol for the generation of spatial multipartite entanglement based on phase-matching of a propagation eigenmode in a monolithic photonic device: the array of quadratic nonlinear waveguides. We theoretically demonstrate in the spontaneous parametric downconversion regime the generation of large multipartite entangled states useful for multimode quantum networks. Our protocol is remarkably simple and robust as it does not rely on specific values of coupling, nonlinearity or length of the sample.
