Evidence of a critical phase transition in a purely temporal dynamics with long-delayed feedback
arXiv:1707.08327 · doi:10.1103/PhysRevLett.120.173901
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.
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- Anti-persistent random walks in time-delayed systems
- Deterministic and stochastic coarsening control in optically-addressed spatial light modulators subject to optical feedback
- Identifying and anticipating the threshold bifurcation of a complex laser with permutation entropy
- Power-law fluctuations near critical point in semiconductor lasers with delayed feedback