Heterodyne optical time domain reflectometer combined with active loss compensation: A practical tool for investigating fermi pasta ulam recurrence process and …

C Naveau, G Vanderhaegen, P Szriftgiser… - Frontiers in …, 2021 - frontiersin.org
We report recent results obtained with a novel optical fiber experimental setup based on a
heterodyne optical time-domain reflectometer in the context of FPU recurrence process …

Instability of double-periodic waves in the nonlinear Schrödinger equation

DE Pelinovsky - Frontiers in Physics, 2021 - frontiersin.org
It is shown how to compute the instability rates for the double-periodic solutions to the cubic
NLS (nonlinear Schrödinger) equation by using the Lax linear equations. The wave function …

“Extraordinary” modulation instability in optics and hydrodynamics

G Vanderhaegen, C Naveau… - Proceedings of the …, 2021 - National Acad Sciences
The classical theory of modulation instability (MI) attributed to Bespalov–Talanov in optics
and Benjamin–Feir for water waves is just a linear approximation of nonlinear effects and …

An application of the rational sine–Gordon method to the Hirota equation

B Kemaloğlu, G Yel, H Bulut - Optical and Quantum Electronics, 2023 - Springer
In this study, the analytical solution of the Hirota equation by using the rational sine–Gordon
expansion method (RSGEM) has been investigated. For this purpose, the mentioned model …

Experimental tweaking of symmetry breaking in recurrent nonlinear modulational instability

G Vanderhaegen, P Szriftgiser, A Kudlinski, A Armaroli… - Physical Review A, 2023 - APS
We show that the nonlinear stage of the universal phenomenon of modulational instability,
and in particular its recurrent behavior, is deeply affected by arbitrarily weak losses. Indeed …

A high dimensional evolution model and its rogue wave solution, breather solution and mixed solutions

S Bai, X Yin, N Cao, L Xu - Nonlinear Dynamics, 2023 - Springer
In this study, a bilinear neural network method is used to solve the exact solutions of the (2+
1)-dimensional Kadomtsev–Petviashvili equation, which is a new geophysical fluid …

Observation of the noise-driven thermalization of the Fermi-Pasta-Ulam-Tsingou recurrence in optical fibers

G Vanderhaegen, P Szriftgiser, A Kudlinski, M Conforti… - Physical Review A, 2022 - APS
We report the observation of the thermalization of the Fermi-Pasta-Ulam-Tsingou recurrence
process in optical fibers. We show the transition from a reversible regime to an irreversible …

Enhancing accuracy of physically informed neural networks for nonlinear Schrödinger equations through multi-view transfer learning

Y Chen, H Xiao, X Teng, W Liu, L Lan - Information Fusion, 2024 - Elsevier
In recent years, significant research efforts have been dedicated to developing solutions for
nonlinear partial differential equations (PDEs) with applications in physics. Among these …

The Fermi–Pasta–Ulam–Tsingou recurrence for discrete systems: Cascading mechanism and machine learning for the Ablowitz–Ladik equation

HM Yin, Q Pan, KW Chow - … in Nonlinear Science and Numerical Simulation, 2022 - Elsevier
Abstract The Fermi–Pasta–Ulam–Tsingou recurrence phenomenon for the Ablowitz–Ladik
equation is studied analytically and computationally. Wave profiles periodic in the discrete …

Rogue waves in the sea: observations, physics, and mathematics

AV Slunyaev, DE Pelinovsky, EN Pelinovsky - Phys. Usp, 2023 - ufn.ru
Rogue waves are anomalously high waves that may suddenly form on the sea surface. At
the dawn of the 21st century, they attracted the interest of researchers, from oceanographers …