Coherent Ising machines behave as approximate analog integrators of overdamped Langevin dynamics; hybrid optical-digital versions are bottlenecked by analog-digital conversion, while fully optical versions are estimated to be much faster and more energy efficient.
TTS is a useful metric for comparing the performance of different hardware when solving a given optimization problem [ 40]
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Coherent Ising Machines: The Good, The Bad, The Ugly
Coherent Ising machines behave as approximate analog integrators of overdamped Langevin dynamics; hybrid optical-digital versions are bottlenecked by analog-digital conversion, while fully optical versions are estimated to be much faster and more energy efficient.