Recent progress on coherent computation based on quantum squeezing

Abstract Squeezed vacuum state of light is an important concept quantum optics which has uncertainty reduction in a specific quadrature compared to the coherent state. The Ising machines (CIMs) based on squeezed are capable searching ground model, can be used solve combinatorial optimization problems and have been experimentally demonstrated excellent computational performance. This review introduces recent progress CIM hardware solver optical parametric oscillators, including delayed path scheme measurement feedback scheme. Also, basic principles, unique advantages, potential challenges described. We expect that applications large-scale solvers will huge impact acceleration computation power.