论文标题
量子启发的方案，用于测量空间形状之间的相似程度
Quantum-inspired protocol for measuring the degree of similarity between spatial shapes
论文作者
论文摘要
我们在实验上提出并演示了一个{\ it量子启发}协议，该方案允许量化两个嵌入两个光学梁中的空间形状之间的相似程度，而无需测量每个光束上的振幅和相位。取而代之的是，可以检索受寻求的信息，以测量组合光束的极化程度，这一测量更容易实验实现。该协议利用了不可分割的光束，其主要特征是无法独立描述不同的自由度（在这里极化和空间形状）。
We put forward and demonstrate experimentally a {\it quantum-inspired} protocol that allows to quantify the degree of similarity between two spatial shapes embedded in two optical beams without the need to measure the amplitude and phase across each beam. Instead the sought-after information can be retrieved measuring the degree of polarization of the combined optical beam, a measurement that is much easier to implement experimentally. The protocol makes use of non-separable optical beams, whose main trait is that different degrees of freedom (polarization and spatial shape here) can not be described independently.
