Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

Abstract

Spatial photonic Ising machines (SPIMs), a variant of optical Ising machines, are promising for large-scale problems but have limitations on the type of problems that can be mapped on them. Here, a variant of SPIMs is demonstrated that can realize anti-ferromagnetic Ising problems with some further experimental simplifications that have potentials for future large-scale Ising machines.