Experimental investigation of the noise-driven thermalization of the Fermi-Pasta-Ulam-Tsingou recurrences process

Guillaume Vanderhaegen (1) , Arnaud Mussot (1) , Pascal Szriftgiser (1) , Matteo Conforti (1) , Alexandre Kudlinski (1) , Andrea Armaroli (1)

1 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523

We demonstrate the noise-driven thermalization of the Fermi-Pasta-Ulam-Tsingou (FPUT) recurrences in optical fibers. We highlight the progressive recurrences breakup in favor of an irreversible spectral energy equipartition by driving the input noise level.

Domaines: Science non linéaire [physics]; Optique / photonique

Guillaume Vanderhaegen, Arnaud Mussot, Pascal Szriftgiser, Matteo Conforti, Alexandre Kudlinski, et al.. Experimental investigation of the noise-driven thermalization of the Fermi-Pasta-Ulam-Tsingou recurrences process. Advanced Photonic Congress, Optica, Jul 2022, Maastricht, Netherlands. ⟨hal-03836544⟩