Soliton gas: Theory, numerics, and experiments

P Suret, S Randoux, A Gelash, D Agafontsev, B Doyon… - Physical Review E, 2024 - APS
The concept of soliton gas was introduced in 1971 by Zakharov as an infinite collection of
weakly interacting solitons in the framework of Korteweg–de Vries (KdV) equation. In this …

Soliton refraction by an optical soliton gas

P Suret, M Dufour, G Roberti, G El, F Copie… - Physical Review …, 2023 - APS
We report an optical fiber experiment in which we investigate the interaction between an
individual soliton and a dense soliton gas. We evidence a refraction phenomenon where the …

KdV breathers on a cnoidal wave background

MA Hoefer, A Mucalica… - Journal of Physics A …, 2023 - iopscience.iop.org
Using the Darboux transformation for the Korteweg–de Vries equation, we construct and
analyze exact solutions describing the interaction of a solitary wave and a traveling cnoidal …

Soliton–mean field interaction in Korteweg–de Vries dispersive hydrodynamics

MJ Ablowitz, JT Cole, GA El… - Studies in Applied …, 2023 - Wiley Online Library
The mathematical description of localized solitons in the presence of large‐scale waves is a
fundamental problem in nonlinear science, with applications in fluid dynamics, nonlinear …

Partial degeneration of finite gap solutions to the Korteweg–de Vries equation: soliton gas and scattering on elliptic backgrounds

M Bertola, R Jenkins, A Tovbis - Nonlinearity, 2023 - iopscience.iop.org
We obtain Fredholm type formulas for partial degenerations of theta functions on
(irreducible) nodal curves of arbitrary genus, with emphasis on nodal curves of genus one …

Interaction of soliton gases in deep-water surface gravity waves

L Fache, F Bonnefoy, G Ducrozet, F Copie, F Novkoski… - Physical Review E, 2024 - APS
Soliton gases represent large random soliton ensembles in physical systems that display
integrable dynamics at leading order. We report hydrodynamic experiments in which we …

[HTML][HTML] Dispersive hydrodynamics of soliton condensates for the Korteweg–de Vries equation

T Congy, GA El, G Roberti, A Tovbis - Journal of Nonlinear Science, 2023 - Springer
We consider large-scale dynamics of non-equilibrium dense soliton gas for the Korteweg–
de Vries (KdV) equation in the special “condensate” limit. We prove that in this limit the …

Riemann problem for polychromatic soliton gases: a testbed for the spectral kinetic theory

T Congy, HT Carr, G Roberti, GA El - arXiv preprint arXiv:2405.05166, 2024 - arxiv.org
We use Riemann problem for soliton gas as a benchmark for a detailed numerical validation
of the spectral kinetic theory for the Korteweg-de Vries (KdV) and the focusing nonlinear …

Jánossy densities and Darboux transformations for the Stark and cylindrical KdV equations

T Claeys, G Glesner, G Ruzza, S Tarricone - … in Mathematical Physics, 2024 - Springer
We study Jánossy densities of a randomly thinned Airy kernel determinantal point process.
We prove that they can be expressed in terms of solutions to the Stark and cylindrical …

Multiple solitons and breathers on periodic backgrounds in the complex modified Korteweg–de Vries equation

J Rao, D Mihalache, J He - Applied Mathematics Letters, 2024 - Elsevier
This study explores multiple soliton and breather solutions on periodic backgrounds in the
complex modified Korteweg–de Vries equation. The compact determinant formulas and their …