Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework

Pairwise interactions of particle-like waves (such as solitons and breathers) are important elementary processes that play a key role in the formation of the rarefied soliton gas statistics. Such waves appear in different physical systems such as deep water, shallow water waves, internal waves in th...

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Main Authors: Ekaterina Didenkulova, Efim Pelinovsky
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/12/9/1445
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author Ekaterina Didenkulova
Efim Pelinovsky
author_facet Ekaterina Didenkulova
Efim Pelinovsky
author_sort Ekaterina Didenkulova
collection DOAJ
description Pairwise interactions of particle-like waves (such as solitons and breathers) are important elementary processes that play a key role in the formation of the rarefied soliton gas statistics. Such waves appear in different physical systems such as deep water, shallow water waves, internal waves in the stratified ocean, and optical fibers. We study the features of different regimes of collisions between a soliton and a breather in the framework of the focusing modified Korteweg–de Vries equation, where cubic nonlinearity is essential. The relative phase of these structures is an important parameter determining the dynamics of soliton–breather collisions. Two series of experiments with different values of the breather’s and soliton’s relative phases were conducted. The waves’ amplitudes resulting from the interaction of coherent structures depending on their relative phase at the moment of collision were analyzed. Wave field moments, which play a decisive role in the statistics of soliton gases, were determined.
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spelling doaj.art-b943c673adf64c55a5130324cef81fee2023-11-20T12:15:54ZengMDPI AGSymmetry2073-89942020-09-01129144510.3390/sym12091445Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation FrameworkEkaterina Didenkulova0Efim Pelinovsky1Department of Information Systems, National Research University Higher School of Economics, 25/12, Bolshaya Pecherskaya Street, 603155 Nizhny Novgorod, RussiaDepartment of Information Systems, National Research University Higher School of Economics, 25/12, Bolshaya Pecherskaya Street, 603155 Nizhny Novgorod, RussiaPairwise interactions of particle-like waves (such as solitons and breathers) are important elementary processes that play a key role in the formation of the rarefied soliton gas statistics. Such waves appear in different physical systems such as deep water, shallow water waves, internal waves in the stratified ocean, and optical fibers. We study the features of different regimes of collisions between a soliton and a breather in the framework of the focusing modified Korteweg–de Vries equation, where cubic nonlinearity is essential. The relative phase of these structures is an important parameter determining the dynamics of soliton–breather collisions. Two series of experiments with different values of the breather’s and soliton’s relative phases were conducted. The waves’ amplitudes resulting from the interaction of coherent structures depending on their relative phase at the moment of collision were analyzed. Wave field moments, which play a decisive role in the statistics of soliton gases, were determined.https://www.mdpi.com/2073-8994/12/9/1445breathersolitonmodified Korteweg–de Vries equationsoliton turbulencebreather turbulence
spellingShingle Ekaterina Didenkulova
Efim Pelinovsky
Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
Symmetry
breather
soliton
modified Korteweg–de Vries equation
soliton turbulence
breather turbulence
title Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
title_full Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
title_fullStr Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
title_full_unstemmed Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
title_short Soliton–Breather Interaction: The Modified Korteweg–de Vries Equation Framework
title_sort soliton breather interaction the modified korteweg de vries equation framework
topic breather
soliton
modified Korteweg–de Vries equation
soliton turbulence
breather turbulence
url https://www.mdpi.com/2073-8994/12/9/1445
work_keys_str_mv AT ekaterinadidenkulova solitonbreatherinteractionthemodifiedkortewegdevriesequationframework
AT efimpelinovsky solitonbreatherinteractionthemodifiedkortewegdevriesequationframework