Relativistic quasi-solitons and embedded solitons with circular polarization in cold plasmas

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dc.contributor.author Sánchez Arriaga, Gonzalo
dc.contributor.author Siminos, E.
dc.date.accessioned 2021-03-22T10:31:54Z
dc.date.available 2021-03-22T10:31:54Z
dc.date.issued 2017-03-31
dc.identifier.bibliographicCitation Journal of Physics A: Mathematical and Theoretical, (217), 50(18), 185501, (19) p.
dc.identifier.issn 1751-8113
dc.identifier.uri http://hdl.handle.net/10016/32193
dc.description.abstract The existence of localized electromagnetic structures is discussed in the framework of the 1-dimensional relativistic Maxwell-fluid model for a cold plasma with immobile ions. New partially localized solutions are found with a finite-difference algorithm designed to locate numerically exact solutions of the Maxwell-fluid system. These solutions are called quasi-solitons and consist of a localized electromagnetic wave trapped in a self-generated plasma density cavity with oscillations at its tails. They are organized in families characterized by the number of nodes p of the vector potential and exist in a continuous range of parameters in the omega -V plane, where V is the velocity of propagation and. is the vector potential angular frequency. A parametric study shows that the familiar fully localized relativistic solitons are special members of the families of partially localized quasi-solitons. Soliton solution branches with p > 0 are therefore parametrically embedded in the continuum of quasi-solitons. On the other hand, geometric arguments and numerical simulations indicate that p = 0 solitons exist only in the limit of either small amplitude or vanishing velocity. Direct numerical simulations of the Maxwell-fluid model indicate that the p > 0 quasi-solitons ( and embedded solitons) are unstable and lead to wake excitation, while p = 0 quasi-solitons appear stable. This helps explain the ubiquitous observation of structures that resemble p = 0 solitons in numerical simulations of laser-plasma interaction.
dc.description.sponsorship E. S. is supported by Knut and Alice Wallenberg Foundation (pliona project) and G. S. A. is supported by the Ministerio de Economía y Competitividad of Spain under the Grant No RYC-2014-15357) and the project ENE2014-54960R.
dc.format.extent 19
dc.language.iso eng
dc.publisher IOP Publishing
dc.rights © 2017 IOP Publishing Ltd.
dc.subject.other Soliton
dc.subject.other Quasi-soliton
dc.subject.other Laser-plasma
dc.subject.other Electromagnetic solitons
dc.subject.other Solitary waves
dc.subject.other Laser-pulses
dc.subject.other Generation
dc.subject.other Spectrum
dc.subject.other Systems
dc.title Relativistic quasi-solitons and embedded solitons with circular polarization in cold plasmas
dc.type article
dc.description.status Publicado
dc.subject.eciencia Biología y Biomedicina
dc.identifier.doi https://doi.org/10.1088/1751-8121/aa65a0
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. RYC-2014-15357
dc.relation.projectID Gobierno de España. ENE2014-54960R
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 18(185501)
dc.identifier.publicationlastpage 19
dc.identifier.publicationtitle Journal of Physics A-Mathematical and Theoretical
dc.identifier.publicationvolume 50
dc.identifier.uxxi AR/0000019840
dc.contributor.funder Ministerio de Economía y Competitividad (España)
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