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Effects of correlated and uncorrelated quenched disorder on nearest-neighbor coupled lasers

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posted on 2023-03-11, 17:00 authored by Amit Pando, Sagie Gadasi, Eran Bernstein, Nikita Stroev, Asher Friesem, Nir Davidson
Quenched disorder is commonly investigated in the context of many body systems such as a varying magnetic field in interacting spin models, or frequency variance of interacting oscillators. It is often difficult to study the effect of disorder on these systems experimentally since it requires a method to change its properties in a controlled fashion. In this work, we study the effect of quenched disorder in the form of frequency detuning on a coupled lasers array using a novel degenerate cavity with tunable disorder and coupling strength. By controlling the properties of the disorder such as its magnitude and spatial correlations, we measure the gradual decrease of phase locking due to the effects of disorder and demonstrate that the effects of disorder depend on the ratio between its correlation length and the size of the phase locked cluster.



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