Quantum computing device for Ising model, quantum parallel computing device for Ising model, and quantum computing method for Ising model

摘要

A parametric oscillator oscillates a plurality of pseudo spin pulses SPi having mutually an identical oscillation frequency by using parametric oscillation, an interaction implementing unit performs feedback implementation of a magnitude and a sign of interaction related to each pseudo spin pulse SPi (the proportionality coefficient λ_i+ΣJ_ijσ_j+ΣK_ijkσ_jσ_k with respect to σ_i) by using a tentative measurement result of oscillation phases ϕ_i(tentative) of the plurality of pseudo spin pulses SPi, and a pseudo spin measuring unit measures the pseudo spins σ_i of the plurality of pseudo spin pulses SPi, based on a final measurement result of oscillation phases ϕ_i(steady) of the plurality of pseudo spin pulses SPi.