Glassy behavior of light in random lasers
Abstract
A theoretical analysis [Angelani et al., Phys. Rev. Lett. 96, 065702 (2006)] predicts glassy behaviour of light in a nonlinear random medium. This implies slow dynamics related to the presence of many metastable states. We consider very general equations (that also apply to other systems, like Bose-Condensed gases) describing light in a disordered non-linear medium and through some approximations we relate them to a mean-field spin-glass-like model. The model is solved by the replica method, and replica-symmetry breaking phase transition is predicted. The transition describes a mode-locking process in which the phases of the modes are locked to random (history and sample-dependent) values. The results are based on very general theory, and embrace a variety of physical phenomena.
Keywords
Cite
@article{arxiv.cond-mat/0604242,
title = {Glassy behavior of light in random lasers},
author = {Luca Angelani and Claudio Conti and Giancarlo Ruocco and Francesco Zamponi},
journal= {arXiv preprint arXiv:cond-mat/0604242},
year = {2016}
}
Comments
21 pages, 3 figures. Revised and enlarged version. To be published in Physical Review B