Stochastic diffusion of ions due to a finite set of lower hybrid waves
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/101354 |
Resumo: | In this paper we generalize the discussion on stochastic diffusion of energetic ions by lower hybrid waves by considering a case where a set of waves with similar frequencies is present in the system. In the particular case of a finite number of coherent waves, we show that the threshold for stochastic diffusion is reduced in comparison with the threshold in the one-wave case, and that the ensuing particle diffusion in velocity space occurs in periodic bursts along the time evolution. In the more general case of a set of waves with random phases, we have obtained even more efficient long-term diffusion in velocity space, for the same number of waves, although the initial diffusion rate can be smaller than in the case of coherent waves. |
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Tozawa, Lucio MinoruZiebell, Luiz Fernando2014-08-19T02:10:23Z20021539-3755http://hdl.handle.net/10183/101354000343505In this paper we generalize the discussion on stochastic diffusion of energetic ions by lower hybrid waves by considering a case where a set of waves with similar frequencies is present in the system. In the particular case of a finite number of coherent waves, we show that the threshold for stochastic diffusion is reduced in comparison with the threshold in the one-wave case, and that the ensuing particle diffusion in velocity space occurs in periodic bursts along the time evolution. In the more general case of a set of waves with random phases, we have obtained even more efficient long-term diffusion in velocity space, for the same number of waves, although the initial diffusion rate can be smaller than in the case of coherent waves.application/pdfengPhysical review. E, Statistical, nonlinear, and soft matter physics. Vol. 66, no. 5 (Nov. 2002), 056409, 13 p.DifusãoProcessos estocásticosStochastic diffusion of ions due to a finite set of lower hybrid wavesEstrangeiroinfo: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:UFRGSORIGINAL000343505.pdf000343505.pdfTexto completo (inglês)application/pdf312782http://www.lume.ufrgs.br/bitstream/10183/101354/1/000343505.pdfc0607b9536d9d1649c225701034c7d74MD51TEXT000343505.pdf.txt000343505.pdf.txtExtracted Texttext/plain48039http://www.lume.ufrgs.br/bitstream/10183/101354/2/000343505.pdf.txtce00bed92a7ac791dbac75ef70b5ffe9MD52THUMBNAIL000343505.pdf.jpg000343505.pdf.jpgGenerated Thumbnailimage/jpeg1951http://www.lume.ufrgs.br/bitstream/10183/101354/3/000343505.pdf.jpg8cb48aec93133a25377f96ac3d24903aMD5310183/1013542023-09-24 03:37:33.308789oai:www.lume.ufrgs.br:10183/101354Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:37:33Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
title |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
spellingShingle |
Stochastic diffusion of ions due to a finite set of lower hybrid waves Tozawa, Lucio Minoru Difusão Processos estocásticos |
title_short |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
title_full |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
title_fullStr |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
title_full_unstemmed |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
title_sort |
Stochastic diffusion of ions due to a finite set of lower hybrid waves |
author |
Tozawa, Lucio Minoru |
author_facet |
Tozawa, Lucio Minoru Ziebell, Luiz Fernando |
author_role |
author |
author2 |
Ziebell, Luiz Fernando |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Tozawa, Lucio Minoru Ziebell, Luiz Fernando |
dc.subject.por.fl_str_mv |
Difusão Processos estocásticos |
topic |
Difusão Processos estocásticos |
description |
In this paper we generalize the discussion on stochastic diffusion of energetic ions by lower hybrid waves by considering a case where a set of waves with similar frequencies is present in the system. In the particular case of a finite number of coherent waves, we show that the threshold for stochastic diffusion is reduced in comparison with the threshold in the one-wave case, and that the ensuing particle diffusion in velocity space occurs in periodic bursts along the time evolution. In the more general case of a set of waves with random phases, we have obtained even more efficient long-term diffusion in velocity space, for the same number of waves, although the initial diffusion rate can be smaller than in the case of coherent waves. |
publishDate |
2002 |
dc.date.issued.fl_str_mv |
2002 |
dc.date.accessioned.fl_str_mv |
2014-08-19T02:10:23Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/101354 |
dc.identifier.issn.pt_BR.fl_str_mv |
1539-3755 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000343505 |
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1539-3755 000343505 |
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http://hdl.handle.net/10183/101354 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 66, no. 5 (Nov. 2002), 056409, 13 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Repositório Institucional da UFRGS |
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