Quantum Phase Transitions Simulated by Optical Oscillators

This paper demonstrates the potential of Coherent Ising Machines (CIMs) not just for optimization but also as simulators of quantum critical phenomena. By mapping the XY spin model to a network of optical oscillators, the researchers show that CIMs can reproduce quantum phase transitions, offering a bridge between quantum spin models and photonic systems. This is significant because it expands the utility of CIMs beyond optimization and provides a new avenue for studying fundamental quantum physics.