{"id":1400,"date":"2024-11-21T12:09:49","date_gmt":"2024-11-21T15:09:49","guid":{"rendered":"https:\/\/revistabrasileiradefisica.com\/rbf\/?p=1400"},"modified":"2024-11-21T12:09:49","modified_gmt":"2024-11-21T15:09:49","slug":"are-these-quasi-normal-modes","status":"publish","type":"post","link":"https:\/\/revistabrasileiradefisica.com\/rbf\/2024\/11\/21\/are-these-quasi-normal-modes\/","title":{"rendered":"Are these quasi-normal modes?"},"content":{"rendered":"\r\n<h4 class=\"wp-block-heading\"><em>Esses s\u00e3o modos quase-normais?<\/em><\/h4>\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\"><strong>DOI<\/strong>: <em><a href=\"https:\/\/doi.org\/10.5281\/zenodo.14198452\" target=\"_blank\" rel=\"noreferrer noopener\">10.5281\/zenodo.14198452<\/a><\/em><\/p>\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\"><strong>Gustavo Breno Nunes Godinho<\/strong><br \/><em><em><a href=\"https:\/\/orcid.org\/0009-0003-5125-5900\" target=\"_blank\" rel=\"noreferrer noopener\">ORCID<\/a> | <\/em> <em><a href=\"http:\/\/lattes.cnpq.br\/5262458028109541\" target=\"_blank\" rel=\"noreferrer noopener\">Lattes<\/a> | <\/em> <a href=\"mailto:gustavo.breno@aluno.ufabc.edu.br\">E-mail<\/a><\/em><\/p>\r\n\r\n<p class=\"has-small-font-size\"><strong>Willians Oswaldo Barreto Acevedo<\/strong><br \/><em><em><a href=\"https:\/\/orcid.org\/0000-0001-9750-2637\" target=\"_blank\" rel=\"noreferrer noopener\">ORCID<\/a> | <\/em> <em><a href=\"http:\/\/lattes.cnpq.br\/6686170560098581\" target=\"_blank\" rel=\"noreferrer noopener\">Lattes<\/a> | <\/em> <a href=\"mailto:willians.barreto@ufabc.edu.br\">E-mail<\/a><\/em><\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\"><em><strong>Resumo: <\/strong>We discuss how to extract numerically the expected lowest quasi-normal mode (QNM) associated with the pressure anisotropy for a Bjorken flux evolution to equilibrium. This QNM was easily decoded subtracting the hydrodynamical attractors and compared with other authors calculations. After evolutions with transients close to the expected lowest QNM the system goes to a tail (pure imaginary frequency) for late times. We analyze the relevance of Navier-Stokes, second order and Borel attractors at each stage of the evolution, which begins far-from-equilibrium and ends close to equilibrium.<\/em><br \/><em><strong>Palavras-chave: <\/strong>Numerical Holography; Numerical Relativity; Computational Physics<\/em><\/p>\r\n\r\n\r\n\r\n<p class=\"has-small-font-size\"><strong>Abstract: <\/strong>Discutimos como extrair numericamente o modo quase-normal (MQN) esperado mais baixo associado \u00e0 press\u00e3o anisotr\u00f3pica para um fluxo de Bjorken evoluindo para o equil\u00edbrio. Este MQN foi facilmente decodificado subtraindo os atratores hidrodin\u00e2micos e comparado com os calculados por outros autores.   Ap\u00f3s evolu\u00e7\u00f5es com transientes pr\u00f3ximos ao MQN mais baixo esperado, o sistema vai para uma cauda (frequ\u00eancia imagin\u00e1ria pura) para tempos tardios. Analisamos a relev\u00e2ncia dos atratores de Navier-Stokes, de segunda ordem e de Borel em cada est\u00e1gio da evolu\u00e7\u00e3o, que come\u00e7a longe do equil\u00edbrio e termina perto do equil\u00edbrio.<br \/><strong>Keywords:<\/strong> Holografia Num\u00e9rica; Relatividade Num\u00e9rica; F\u00edsica Computacional<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-buttons is-layout-flex\">\r\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link\" href=\"https:\/\/doi.org\/10.5281\/zenodo.14198452\" target=\"_blank\" rel=\"noreferrer noopener\">Baixar em PDF<\/a><\/div>\r\n<\/div>\r\n\r\n\r\n\r\n<p>&nbsp;<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>DOI: Resumo: Palavras-chave: Abstract: Keywords: &nbsp;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[476],"tags":[410,408,494,490,492,493,491,497,496,495],"_links":{"self":[{"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/posts\/1400"}],"collection":[{"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/comments?post=1400"}],"version-history":[{"count":1,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/posts\/1400\/revisions"}],"predecessor-version":[{"id":1401,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/posts\/1400\/revisions\/1401"}],"wp:attachment":[{"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/media?parent=1400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/categories?post=1400"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistabrasileiradefisica.com\/rbf\/wp-json\/wp\/v2\/tags?post=1400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}