New-paradigm CMOS Ising computing for combinatorial optimization problems

A new computing using Ising model that effectively solves combinatorial optimization problems is proposed. The computing maps problems to an Ising model, a model to express the behavior of magnetic spins, and solves the problems by its own convergence property. We fabricated a prototype computing chip and confirmed the power efficiency of the chip is 1800-times higher than that of the conventional von-Neumann computers.