Evidence of a critical phase transition in a purely temporal dynamics with long-delayed feedback
Abstract
Experimental evidence of an absorbing phase transition, so far associated with spatio-temporal dynamics is provided in a purely temporal optical system. A bistable semiconductor laser, with long-delayed opto-electronic feedback and multiplicative noise shows the peculiar features of a critical phenomenon belonging to the directed percolation universality class. The numerical study of a simple, effective model provides accurate estimates of the transition critical exponents, in agreement with both theory and our experiment. This result pushes forward an hard equivalence of non-trivial stochastic, long-delayed systems with spatio-temporal ones and opens a new avenue for studying out-of-equilibrium universality classes in purely temporal dynamics.
Keywords
Cite
@article{arxiv.1707.08327,
title = {Evidence of a critical phase transition in a purely temporal dynamics with long-delayed feedback},
author = {Marco Faggian and Francesco Ginelli and Francesco Marino and Giovanni Giacomelli},
journal= {arXiv preprint arXiv:1707.08327},
year = {2018}
}