20 February 2017 Large-scale artificial spin network based on time-multiplexed degenerate optical parametric oscillators for coherent Ising machine
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Abstract
We describe a large-scale degenerate optical parametric oscillator (DOPO) network for a coherent Ising machine that solves combinatorial optimization problems. By pumping a fiber-based phase-sensitive amplifier placed in a 1-km fiber cavity at a 2-GHz repetition frequency, we generated more than 10,000 DOPOs multiplexed in the time domain. We confirmed that the DOPO phases were discretized to {0, π} indicating that they could be used as stable artificial spins. We also implemented a one-dimensional Ising model by optically coupling adjacent DOPOs, and confirmed that the DOPOs well simulated the behavior of low-temperature spins.
Conference Presentation
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hiroki Takesue, Hiroki Takesue, Takahiro Inagaki, Takahiro Inagaki, Kensuke Inaba, Kensuke Inaba, Ryan Hamerly, Ryan Hamerly, Kyo Inoue, Kyo Inoue, Yoshihisa Yamamoto, Yoshihisa Yamamoto, } "Large-scale artificial spin network based on time-multiplexed degenerate optical parametric oscillators for coherent Ising machine", Proc. SPIE 10088, Nonlinear Frequency Generation and Conversion: Materials and Devices XVI, 1008812 (20 February 2017); doi: 10.1117/12.2255796; https://doi.org/10.1117/12.2255796
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