A Quantum Model for Coherent Ising Machines: Discrete-time Measurement Feedback Formulation
arXiv:1706.02454 · doi:10.1103/PhysRevA.96.053834
Abstract
Recently, the coherent Ising machine (CIM) as a degenerate optical parametric oscillator (DOPO) network has been researched to solve Ising combinatorial optimization problems. We formulate a theoretical model for the CIM with discrete-time measurement feedback processes, and perform numerical simulations for the simplest network, composed of two degenerate optical parametric oscillator pulses with the anti-ferromagnetic mutual coupling. We evaluate the extent to which quantum coherence exists during the optimization process.
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- Steady state distributions of network of degenerate optical parametric oscillators in solving combinatorial optimization problems