Evidence of a Critical Phase Transition in Purely Temporal Dynamics with Long-Delayed Feedback

Marco Faggian, Francesco Ginelli, Francesco Marino, Giovanni Giacomelli

Research output: Contribution to journalArticle

6 Citations (Scopus)
7 Downloads (Pure)

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.
Original languageEnglish
Article number173901
JournalPhysical Review Letters
Volume120
Issue number17
DOIs
Publication statusPublished - 26 Apr 2018

Fingerprint Dive into the research topics of 'Evidence of a Critical Phase Transition in Purely Temporal Dynamics with Long-Delayed Feedback'. Together they form a unique fingerprint.

Cite this