Rogue Waves in Ultracold Bosonic Seas

In this work, we numerically consider the initial value problem for nonlinear Schrodinger (NLS)-type models arising in the physics of ultracold bosonic gases, with generic Gaussian wavepacket initial data. The corresponding Gaussian’s width and, wherever relevant, also its amplitude serve as control...

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Detalles Bibliográficos
Autores: Charalampidis, E. G., Cuevas-Maraver, Jesús, Frantzeskakis, Dimitri J., Kevrekidis, Panayotis G.
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2018
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/69296
Acceso en línea:https://hdl.handle.net/11441/69296
Access Level:acceso abierto
Palabra clave:Rogue waves
Ultracold bosonic gases
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spelling Rogue Waves in Ultracold Bosonic SeasCharalampidis, E. G.Cuevas-Maraver, JesúsFrantzeskakis, Dimitri J.Kevrekidis, Panayotis G.Rogue wavesUltracold bosonic gasesIn this work, we numerically consider the initial value problem for nonlinear Schrodinger (NLS)-type models arising in the physics of ultracold bosonic gases, with generic Gaussian wavepacket initial data. The corresponding Gaussian’s width and, wherever relevant, also its amplitude serve as control parameters. First, we explore the one-dimensional, standard NLS equation with general power law nonlinearity, in which large amplitude excitations reminiscent of Peregrine solitons or regular solitons appear to form, as the width of the relevant Gaussian is varied. Furthermore, the variation of the nonlinearity exponent aims at exploring the interplay between rogue waves and the emergence of collapse. The robustness of the main features to noise in the initial data is also confirmed. To better connect our study with the physics of atomic condensates, and explore the role of dimensionality effects, we also consider the nonpolynomial Schrodinger equation, as well as the full three-dimensional NLS equation, and examine the degree to which relevant considerations generalize. Eliminar seleccionadosMAT2016-79866-R (AEI/FEDER, UE)Academiei RomaneFísica Aplicada IFQM280: Física no LinealEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/submittedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/69296reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésMAT2016-79866-Rhttp://www.rrp.infim.ro/IP/2018/AN504.pdfinfo:eu-repo/semantics/openAccessoai:idus.us.es:11441/692962026-06-17T12:51:07Z
dc.title.none.fl_str_mv Rogue Waves in Ultracold Bosonic Seas
title Rogue Waves in Ultracold Bosonic Seas
spellingShingle Rogue Waves in Ultracold Bosonic Seas
Charalampidis, E. G.
Rogue waves
Ultracold bosonic gases
title_short Rogue Waves in Ultracold Bosonic Seas
title_full Rogue Waves in Ultracold Bosonic Seas
title_fullStr Rogue Waves in Ultracold Bosonic Seas
title_full_unstemmed Rogue Waves in Ultracold Bosonic Seas
title_sort Rogue Waves in Ultracold Bosonic Seas
dc.creator.none.fl_str_mv Charalampidis, E. G.
Cuevas-Maraver, Jesús
Frantzeskakis, Dimitri J.
Kevrekidis, Panayotis G.
author Charalampidis, E. G.
author_facet Charalampidis, E. G.
Cuevas-Maraver, Jesús
Frantzeskakis, Dimitri J.
Kevrekidis, Panayotis G.
author_role author
author2 Cuevas-Maraver, Jesús
Frantzeskakis, Dimitri J.
Kevrekidis, Panayotis G.
author2_role author
author
author
dc.contributor.none.fl_str_mv Física Aplicada I
FQM280: Física no Lineal
European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)
dc.subject.none.fl_str_mv Rogue waves
Ultracold bosonic gases
topic Rogue waves
Ultracold bosonic gases
description In this work, we numerically consider the initial value problem for nonlinear Schrodinger (NLS)-type models arising in the physics of ultracold bosonic gases, with generic Gaussian wavepacket initial data. The corresponding Gaussian’s width and, wherever relevant, also its amplitude serve as control parameters. First, we explore the one-dimensional, standard NLS equation with general power law nonlinearity, in which large amplitude excitations reminiscent of Peregrine solitons or regular solitons appear to form, as the width of the relevant Gaussian is varied. Furthermore, the variation of the nonlinearity exponent aims at exploring the interplay between rogue waves and the emergence of collapse. The robustness of the main features to noise in the initial data is also confirmed. To better connect our study with the physics of atomic condensates, and explore the role of dimensionality effects, we also consider the nonpolynomial Schrodinger equation, as well as the full three-dimensional NLS equation, and examine the degree to which relevant considerations generalize. Eliminar seleccionados
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/69296
url https://hdl.handle.net/11441/69296
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv MAT2016-79866-R
http://www.rrp.infim.ro/IP/2018/AN504.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academiei Romane
publisher.none.fl_str_mv Academiei Romane
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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