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Characterizing far from equilibrium states of the one-dimensional nonlinear Schr{ö}dinger equation

by Abhik Kumar Saha, Romain Dubessy

Submission summary

Authors (as registered SciPost users): Romain Dubessy
Submission information
Preprint Link: https://arxiv.org/abs/2210.09812v2  (pdf)
Date submitted: 2024-05-25 08:52
Submitted by: Dubessy, Romain
Submitted to: SciPost Physics Core
Ontological classification
Academic field: Physics
Specialties:
  • Atomic, Molecular and Optical Physics - Theory
  • Quantum Physics
Approaches: Theoretical, Computational

Abstract

We use the mathematical toolbox of the inverse scattering transform to study quantitatively the number of solitons in far from equilibrium one-dimensional systems described by the defocusing nonlinear Schr{\"o}dinger equation. We present a simple method to identify the discrete eigenvalues in the Lax spectrum and provide a extensive benchmark of its efficiency. Our method can be applied in principle to all physical systems described by the defocusing nonlinear Schr{\"o}dinger equation and allows to identify the solitons velocity distribution in numerical simulations and possibly experiments.

Current status:
In refereeing

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