{"id":41417,"date":"1999-01-01T00:00:00","date_gmt":"1999-01-01T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/cosmological-perturbations-in-open-inflation\/"},"modified":"1999-01-01T00:00:00","modified_gmt":"1999-01-01T00:00:00","slug":"cosmological-perturbations-in-open-inflation","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisica\/cosmological-perturbations-in-open-inflation\/","title":{"rendered":"Cosmological perturbations in open inflation."},"content":{"rendered":"<h2>Tesis doctoral de <strong>  Montes Aguilar Francisco Javier <\/strong><\/h2>\n<p>En la presente tesis se estudian las fluctuaciones cu\u00e1nticas en modelos de inflaci\u00f3n abierta, teniendo en cuenta las propias fuctuaciones de la m\u00e9trica. los modelos de inflaci\u00f3n abierta son modelos que permiten reconciliar un universo de secciones espaciales abiertas con el paradigma inflacionario. en estos modelos, una burbuja nuclear en un espacio de sitter y su interior subre un segundo periodo de inflaci\u00f3n. dentro de una de estas burbujas podr\u00eda encontrarse nuestro universo.  en esta tesis se realiza la cuantizaci\u00f3n de perturbaciones cosmol\u00f3gicas en modelos de inflaci\u00f3n abierta de un campo, utilizando un formalismo invariante gauge. para hallar la acci\u00f3n reducida, que contiene s\u00f3lo los grados de libertar f\u00edsicos del problema, se utiliza el m\u00e9todo de faddeev-jackiw. a pesar de que para universos abiertos la reducci\u00f3n debe realizarse en una regi\u00f3n del espacio en el que las superf\u00edcies de cauchy no son homog\u00e9neas, encontramos una acci\u00f3n para tres grados de libertad que est\u00e1n asociados de forma natural con los modos escalares y tensoriales que aparecen cuando se consideran perturbaciones cosmol\u00f3gicas en inflaci\u00f3n est\u00e1ndard.  para fijar el vac\u00edo cu\u00e1ntico de las fluctuaciones, se utilizan consideraciones de simetr\u00eda. imponemos que el vac\u00edo debe tener las simetr\u00edas del modelo, esto es, debe ser invariante lorentz. Finalmente se determina el espectro primordial de perturbaciones escalares y gravitacionales predichos por estos modelos de inflaci\u00f3n abierta, calcul\u00e1ndose la distorsi\u00f3n producida en el fondo c\u00f3smico de radiaci\u00f3n de microondas.  se consideran asimismo modelos de inflaci\u00f3n abierta de dos campos. la inclusi\u00f3n de un segundo campo hace que los modelos sean casi-abiertos en vez de abiertos. Los modelos casi-abiertos son localmente abiertos, pero su estructura global es mucho m\u00e1s complicada.  en una misma burbuja hay regiones en las que se produce inflaci\u00f3n, separadas por regio<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Cosmological perturbations in open inflation.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Cosmological perturbations in open inflation. <\/li>\n<li><strong>Autor:<\/strong>\u00a0  Montes Aguilar Francisco Javier <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de barcelona<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1999<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jaume Garriga Torres<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: j.a. Grifols <\/li>\n<li>j.a. Lobo (vocal)<\/li>\n<li>v.f. Mukhanov (vocal)<\/li>\n<li>d. Polarski (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Montes Aguilar Francisco Javier En la presente tesis se estudian las fluctuaciones cu\u00e1nticas en modelos de inflaci\u00f3n [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[1050,1052,199,1432,34004,2855],"tags":[104951,104948,104949,70280,104947,104950],"class_list":["post-41417","post","type-post","status-publish","format-standard","hentry","category-astronomia-y-astrofisica","category-cosmologia-y-cosmogonia","category-fisica","category-fisica-teorica","category-gravitacion","category-teoria-de-la-gravitacion-universal","tag-d-polarski","tag-j-a-grifols","tag-j-a-lobo","tag-jaume-garriga-torres","tag-montes-aguilar-francisco-javier","tag-v-f-mukhanov"],"_links":{"self":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/41417","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/comments?post=41417"}],"version-history":[{"count":0,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/posts\/41417\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/media?parent=41417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/categories?post=41417"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.deberes.net\/tesis\/wp-json\/wp\/v2\/tags?post=41417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}