Fig. 7: Evolution of the second harmonic (SH) and pump lights with different iteration numbers.
From: Large-scale Ising emulation with four body interaction and all-to-all connections
a, b The resulting images of the SH and pump lights, respectively, at the crystal output upon different numbers of iterations (shown inside of the images)). The system contains 800 × 800 spins and the goal is to find the ground state of the Ising Hamiltonian with α = 0, β = 1, and γ = 1. The blue and red circles indicate the coupling areas of the SH and pump light into the single-mode fibers, respectively. The labels in each image are the corresponding iteration numbers. c The measured SH (blue dashed curve) and pump (red solid curve) power over iterations.
