{"id":158454,"date":"2024-06-03T11:53:23","date_gmt":"2024-06-03T10:53:23","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/a-termodinamica-da-radiacao-dos-buracos-negros\/"},"modified":"2024-06-03T11:53:23","modified_gmt":"2024-06-03T10:53:23","slug":"a-termodinamica-da-radiacao-dos-buracos-negros","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/","title":{"rendered":"A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros"},"content":{"rendered":"<p class=\"sidekick\">A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros explora como a radia\u00e7\u00e3o de Hawking desafia as leis f\u00edsicas, combinando relatividade geral e mec\u00e2nica qu\u00e2ntica.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/a_termodinamica_da_radiacao_dos_buracos_negros.png\" alt=\"A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>A Termodin\u00e2mica da Radia\u00e7\u00e3o dos Buracos Negros<\/h2>\n<p>A termodin\u00e2mica dos buracos negros \u00e9 um campo fascinante da f\u00edsica que combina a teoria da relatividade geral e a mec\u00e2nica qu\u00e2ntica. Um dos conceitos mais intrigantes dentro desse campo \u00e9 a radia\u00e7\u00e3o de Hawking, que sugere que os buracos negros n\u00e3o s\u00e3o completamente escuros, mas emitem radia\u00e7\u00e3o t\u00e9rmica. Essa descoberta tem implica\u00e7\u00f5es profundas para a termodin\u00e2mica e para a f\u00edsico te\u00f3rica.<\/p>\n<h2>O Conceito de Radia\u00e7\u00e3o de Hawking<\/h2>\n<p>A radia\u00e7\u00e3o de Hawking foi proposta pelo f\u00edsico Stephen Hawking em 1974. Atrav\u00e9s de c\u00e1lculos qu\u00e2nticos, Hawking mostrou que pares de part\u00edculas e antipart\u00edculas s\u00e3o criados constantemente no evento de horizonte de um buraco negro. Quando isso acontece pr\u00f3ximo ao horizonte de eventos, uma dessas part\u00edculas pode cair no buraco negro, enquanto a outra escapa, resultando na emiss\u00e3o de radia\u00e7\u00e3o.<\/p>\n<h2>A F\u00f3rmula da Temperatura da Radia\u00e7\u00e3o de Hawking<\/h2>\n<p>A temperatura \\(T\\) da radia\u00e7\u00e3o emitida por um buraco negro \u00e9 dada pela f\u00f3rmula:<\/p>\n<pre>\nT = \\frac{\\hbar c^3}{8 \\pi G M k_B}\n<\/pre>\n<p>Onde:<\/p>\n<ul>\n<li>\\(\\hbar\\) \u00e9 a constante reduzida de Planck.<\/li>\n<li>c \u00e9 a velocidade da luz no v\u00e1cuo.<\/li>\n<li>G \u00e9 a constante gravitacional.<\/li>\n<li>M \u00e9 a massa do buraco negro.<\/li>\n<li>k_B \u00e9 a constante de Boltzmann.<\/li>\n<\/ul>\n<h2>Entropia dos Buracos Negros<\/h2>\n<p>A entropia \\(S\\) de um buraco negro tamb\u00e9m tem um papel crucial na termodin\u00e2mica. A f\u00f3rmula para a entropia de um buraco negro \u00e9 dada por:<\/p>\n<pre>\nS = \\frac{k_B A}{4 l_p^2}\n<\/pre>\n<p>Onde:<\/p>\n<ul>\n<li>A \u00e9 a \u00e1rea do horizonte de eventos do buraco negro.<\/li>\n<li>l_p \u00e9 o comprimento de Planck.<\/li>\n<\/ul>\n<p>Essa f\u00f3rmula implica que a entropia de um buraco negro \u00e9 proporcional \u00e0 sua \u00e1rea de superf\u00edcie, em vez de seu volume, o que \u00e9 uma distin\u00e7\u00e3o significativa das formas convencionais de mat\u00e9ria.<\/p>\n<h2>Conclus\u00e3o<\/h2>\n<p>A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros n\u00e3o s\u00f3 desafia as nossas intui\u00e7\u00f5es sobre as leis f\u00edsicas, mas tamb\u00e9m oferece uma janela importante para a unifica\u00e7\u00e3o das teorias da relatividade geral e da mec\u00e2nica qu\u00e2ntica. A radia\u00e7\u00e3o de Hawking e a entropia dos buracos negros exemplificam a profunda conex\u00e3o entre gravidade, termodin\u00e2mica e teoria qu\u00e2ntica.<\/p>\n<p>Estudar esses fen\u00f4menos n\u00e3o \u00e9 apenas vital para a f\u00edsica te\u00f3rica, mas tamb\u00e9m estimula novas formas de pensar sobre o universo e os fundamentos da realidade.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros explora como a radia\u00e7\u00e3o de Hawking desafia as leis f\u00edsicas, combinando relatividade geral e mec\u00e2nica qu\u00e2ntica.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[120],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros<\/title>\n<meta name=\"description\" content=\"A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros explora como a radia\u00e7\u00e3o de Hawking desafia as leis f\u00edsicas, combinando relatividade geral e mec\u00e2nica qu\u00e2ntica.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros\" \/>\n<meta property=\"og:description\" content=\"A termodin\u00e2mica da radia\u00e7\u00e3o dos buracos negros explora como a radia\u00e7\u00e3o de Hawking desafia as leis f\u00edsicas, combinando relatividade geral e mec\u00e2nica qu\u00e2ntica.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/\" \/>\n<meta property=\"og:site_name\" content=\"Thermal Engineering\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-03T10:53:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/a_termodinamica_da_radiacao_dos_buracos_negros.png\" \/>\n<meta name=\"twitter:card\" content=\"summary\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\">\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\">\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data2\" content=\"2 minutos\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\",\"url\":\"https:\/\/www.thermal-engineering.org\/fr\/\",\"name\":\"Thermal Engineering\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.thermal-engineering.org\/fr\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-BR\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/#primaryimage\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/06\/a_termodinamica_da_radiacao_dos_buracos_negros.png\",\"width\":1000,\"height\":1000,\"caption\":\"A termodin\\u00e2mica da radia\\u00e7\\u00e3o dos buracos negros\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/#webpage\",\"url\":\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/\",\"name\":\"A termodin\\u00e2mica da radia\\u00e7\\u00e3o dos buracos negros\",\"isPartOf\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/#primaryimage\"},\"datePublished\":\"2024-06-03T10:53:23+00:00\",\"dateModified\":\"2024-06-03T10:53:23+00:00\",\"author\":{\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"A termodin\\u00e2mica da radia\\u00e7\\u00e3o dos buracos negros explora como a radia\\u00e7\\u00e3o de Hawking desafia as leis f\\u00edsicas, combinando relatividade geral e mec\\u00e2nica qu\\u00e2ntica.\",\"inLanguage\":\"pt-BR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.thermal-engineering.org\/pt-br\/a-termodinamica-da-radiacao-dos-buracos-negros\/\"]}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\",\"name\":\"Nick Connor\",\"image\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.thermal-engineering.org\/fr\/#personlogo\",\"inLanguage\":\"pt-BR\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/84c0dec310b44b65da29dc9df6925239?s=96&d=mm&r=g\",\"caption\":\"Nick Connor\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/158454"}],"collection":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/comments?post=158454"}],"version-history":[{"count":0,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/posts\/158454\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/media?parent=158454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/categories?post=158454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thermal-engineering.org\/pt-br\/wp-json\/wp\/v2\/tags?post=158454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}