Noise avalanche and its quantum quenching in bosonic chains with random off-diagonal disorder
Phys. Rev. A 112, 013526 – Published 22 July, 2025
DOI: https://doi.org/10.1103/4mdy-5x95
Abstract
Here we discuss a phenomenon of sharp increase in the photon number noise at initial stages of propagation in tight-binding bosonic chains with off-diagonal disorder. Such a “noise avalanche” occurs under classical coherent excitation of waveguides and leads to high superthermal photon bunching. Additional classical excitation slows but cannot quench this noise avalanche. However, an additional single-photon excitation stops the avalanche.
