Collisionless relaxation in non-neutral plasmas

Detalhes bibliográficos
Autor(a) principal: Levin, Yan
Data de Publicação: 2008
Outros Autores: Pakter, Renato, Teles, Tarcisio Nunes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/99403
Resumo: A theoretical framework is presented which allows us to quantitatively predict the final stationary state achieved by a non-neutral plasma during a process of collisionless relaxation. As a specific application, the theory is used to study relaxation of charged-particle beams. It is shown that a fully matched beam relaxes to the Lynden-Bell distribution. However, when a mismatch is present and the beam oscillates, parametric resonances lead to a core-halo phase separation. The approach developed accounts for both the density and the velocity distributions in the final stationary state.
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spelling Levin, YanPakter, RenatoTeles, Tarcisio Nunes2014-08-09T02:11:36Z20080031-9007http://hdl.handle.net/10183/99403000630100A theoretical framework is presented which allows us to quantitatively predict the final stationary state achieved by a non-neutral plasma during a process of collisionless relaxation. As a specific application, the theory is used to study relaxation of charged-particle beams. It is shown that a fully matched beam relaxes to the Lynden-Bell distribution. However, when a mismatch is present and the beam oscillates, parametric resonances lead to a core-halo phase separation. The approach developed accounts for both the density and the velocity distributions in the final stationary state.application/pdfengPhysical review letters. Melville. Vol. 100, no. 4 (Feb. 2008), 040604 4p.Mecânica estatísticaTermodinâmicaPropriedades dos plasmasOticaCollisionless relaxation in non-neutral plasmasEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000630100.pdf000630100.pdfTexto completo (inglês)application/pdf985508http://www.lume.ufrgs.br/bitstream/10183/99403/1/000630100.pdf86e804c9b29ab79a35dbc67aeabf7cb4MD51TEXT000630100.pdf.txt000630100.pdf.txtExtracted Texttext/plain21206http://www.lume.ufrgs.br/bitstream/10183/99403/2/000630100.pdf.txtac13e84887b1ada0736bbdc45f929af7MD52THUMBNAIL000630100.pdf.jpg000630100.pdf.jpgGenerated Thumbnailimage/jpeg2175http://www.lume.ufrgs.br/bitstream/10183/99403/3/000630100.pdf.jpgdb935452e74404b17d36d7c927696c1fMD5310183/994032023-09-02 03:34:12.416989oai:www.lume.ufrgs.br:10183/99403Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-02T06:34:12Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Collisionless relaxation in non-neutral plasmas
title Collisionless relaxation in non-neutral plasmas
spellingShingle Collisionless relaxation in non-neutral plasmas
Levin, Yan
Mecânica estatística
Termodinâmica
Propriedades dos plasmas
Otica
title_short Collisionless relaxation in non-neutral plasmas
title_full Collisionless relaxation in non-neutral plasmas
title_fullStr Collisionless relaxation in non-neutral plasmas
title_full_unstemmed Collisionless relaxation in non-neutral plasmas
title_sort Collisionless relaxation in non-neutral plasmas
author Levin, Yan
author_facet Levin, Yan
Pakter, Renato
Teles, Tarcisio Nunes
author_role author
author2 Pakter, Renato
Teles, Tarcisio Nunes
author2_role author
author
dc.contributor.author.fl_str_mv Levin, Yan
Pakter, Renato
Teles, Tarcisio Nunes
dc.subject.por.fl_str_mv Mecânica estatística
Termodinâmica
Propriedades dos plasmas
Otica
topic Mecânica estatística
Termodinâmica
Propriedades dos plasmas
Otica
description A theoretical framework is presented which allows us to quantitatively predict the final stationary state achieved by a non-neutral plasma during a process of collisionless relaxation. As a specific application, the theory is used to study relaxation of charged-particle beams. It is shown that a fully matched beam relaxes to the Lynden-Bell distribution. However, when a mismatch is present and the beam oscillates, parametric resonances lead to a core-halo phase separation. The approach developed accounts for both the density and the velocity distributions in the final stationary state.
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2014-08-09T02:11:36Z
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review letters. Melville. Vol. 100, no. 4 (Feb. 2008), 040604 4p.
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