Gaussian Optical Ising Machines

20 Jun 2017  ·  Clements William R., Renema Jelmer J., Wen Y. Henry, Chrzanowski Helen M., Kolthammer W. Steven, Walmsley Ian A. ·

It has recently been shown that optical parametric oscillator (OPO) Ising machines, consisting of coupled optical pulses circulating in a cavity with parametric gain, can be used to probabilistically find low-energy states of Ising spin systems. In this work, we study optical Ising machines that operate under simplified Gaussian dynamics... We show that these dynamics are sufficient for reaching probabilities of success comparable to previous work. Based on this result, we propose modified optical Ising machines with simpler designs that do not use parametric gain yet achieve similar performance, thus suggesting a route to building much larger systems. read more

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Quantum Physics