{"id":27991,"date":"2025-07-17T13:53:59","date_gmt":"2025-07-17T16:53:59","guid":{"rendered":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/?p=27991"},"modified":"2025-07-17T13:54:08","modified_gmt":"2025-07-17T16:54:08","slug":"seminarios-do-cosmo-ufes-18-07-11h-palestrante-sayyed-rassouli-un-reino-unido","status":"publish","type":"post","link":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/seminarios-do-cosmo-ufes-18-07-11h-palestrante-sayyed-rassouli-un-reino-unido\/","title":{"rendered":"Semin\u00e1rios do Cosmo-ufes, 18\/07, 11h. Palestrante: Sayyed Rassouli (UN, Reino Unido)"},"content":{"rendered":"\n<p>Nesta sexta-feira, dia 18\/07, \u00e0s 11h, teremos a palestra de Sayyed Rassouli (UN, Reino Unido), intitulada<\/p>\n\n\n\n<p>&#8220;Unimodular JT gravity and de Sitter quantum cosmology&#8221;<\/p>\n\n\n\n<p>A palestra ser\u00e1 realizada no formato remoto, atrav\u00e9s do link<\/p>\n\n\n\n<p><a href=\"https:\/\/meet.google.com\/fdk-wxuq-qrk\">https:\/\/meet.google.com\/fdk-wxuq-qrk<\/a><\/p>\n\n\n\n<p>Sayyed Rassouli (Universidade de Nottingham, Reino Unido)<\/p>\n\n\n\n<p>T\u00edtulo:&nbsp;Unimodular JT gravity and de Sitter quantum cosmology<\/p>\n\n\n\n<p>Resumo:&nbsp;In this talk, I will show how a gauge-theoretic approach to Jackiw\u2013Teitelboim (JT) gravity naturally yields a two-dimensional Henneaux\u2013Teitelboim (HT) unimodular theory, applicable to both flat and curved spacetimes. Under a mini-superspace reduction, the Wheeler\u2013DeWitt equation becomes a Schr\u00f6dinger-like equation admitting a consistent, unitary quantum description. The resulting wavefunction describes a quantum distribution for the scale factor, illuminating cosmic expansion and contraction, and allowing topology change at a=0.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nesta sexta-feira, dia 18\/07, \u00e0s 11h, teremos a palestra de Sayyed Rassouli (UN, Reino Unido), intitulada &#8220;Unimodular JT gravity and de Sitter quantum cosmology&#8221; A palestra ser\u00e1 realizada no formato remoto, atrav\u00e9s do link https:\/\/meet.google.com\/fdk-wxuq-qrk Sayyed Rassouli (Universidade de Nottingham, Reino Unido) T\u00edtulo:&nbsp;Unimodular JT gravity and de Sitter quantum cosmology Resumo:&nbsp;In this talk, I will [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":16567,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[461],"tags":[],"class_list":["post-27991","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eventos"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/27991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/comments?post=27991"}],"version-history":[{"count":2,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/27991\/revisions"}],"predecessor-version":[{"id":27993,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/27991\/revisions\/27993"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/media\/16567"}],"wp:attachment":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/media?parent=27991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/categories?post=27991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/tags?post=27991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}