Physics

Antiferromagnetic spatial photonic Ising machine through optoelectronic correlation computing

J. Huang, Y. Fang, et al.

This groundbreaking research by Junyi Huang, Yisheng Fang, and Zhichao Ruan introduces an innovative antiferromagnetic model powered by optoelectronic correlation computing. Boasting impressive scalability, this method enables an accelerated ground-state search for complex problems, such as number-partitioning involving 40,000 spins, unlocking new possibilities in statistical physics and optimization.... show more

Abstract

Recently, spatial photonic Ising machines (SPIM) have been demonstrated to compute the minima of Hamiltonians for large-scale spin systems. Here we propose to implement an antiferromagnetic model through optoelectronic correlation computing with SPIM. Also we exploit the gauge transformation which enables encoding the spins and the interaction strengths in a single phase-only spatial light modulator. With a simple setup, we experimentally show the ground-state-search acceleration of an antiferromagnetic model with 40000 spins in number-partitioning problem. Thus such an optoelectronic computing exhibits great programmability and scalability for the practical applications of studying statistical systems and combinatorial optimization problems.

Publisher

Communications Physics

Published On

Nov 12, 2021

Authors

Junyi Huang, Yisheng Fang, Zhichao Ruan

DOI

https://doi.org/10.1038/s42005-021-00741-x