Sun Wenchen, Zhang Wenjia, Liu Yuanyuan, Liu Qingwen, He Zuyuan
Opt Lett. 2022 Mar 15;47(6):1498-1501. doi: 10.1364/OL.446789.
As a computing accelerator, a large-scale photonic spatial Ising machine has great advantages and potential due to its excellent scalability and compactness. However, the current fundamental limitation of a photonic spatial Ising machine is the configuration flexibility for problem implementation in the accelerator model. Arbitrary spin interactions are highly desired for solving various non-deterministic polynomial (NP)-hard problems. In this paper, we propose a novel quadrature photonic spatial Ising machine to break through the limitation of the photonic Ising accelerator by synchronous phase manipulation in two sections. The max-cut problem solution with a graph order of 100 and density from 0.5 to 1 is experimentally demonstrated after almost 100 iterations. Our work suggests flexible problem solving by the large-scale photonic spatial Ising machine.
作为一种计算加速器，大规模光子空间伊辛机因其出色的可扩展性和紧凑性而具有巨大优势和潜力。然而，光子空间伊辛机目前的基本限制在于加速器模型中问题实现的配置灵活性。对于解决各种非确定性多项式（NP）难问题，任意自旋相互作用是非常需要的。在本文中，我们提出了一种新颖的正交光子空间伊辛机，通过在两个部分进行同步相位操纵来突破光子伊辛加速器的限制。经过近100次迭代，实验证明了对于图阶为100且密度从0.5到1的最大割问题的解决方案。我们的工作表明大规模光子空间伊辛机能够灵活地解决问题。
