{"id":154689,"date":"2023-01-06T14:24:07","date_gmt":"2023-01-06T20:24:07","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/01\/closed-timelike-curve"},"modified":"2023-01-06T14:24:07","modified_gmt":"2023-01-06T20:24:07","slug":"closed-timelike-curve","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/01\/closed-timelike-curve","title":{"rendered":"Closed timelike curve"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/LeLkmS3PZ5g?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>In mathematical physics, a closed timelike curve (CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime, that is \u201cclosed\u201d, returning to its starting point. This possibility was first discovered by Willem Jacob van Stockum in 1937<sup id=\u201d cite_ref-1\u201d class=\u201d reference\u201d>[1]<\/sup> and later confirmed by Kurt G\u00f6del in 1949,<sup id=\u201d cite_ref-Hawking2013_2-0\u201d class=\u201d reference\u201d>[2]<\/sup> who discovered a solution to the equations of general relativity (GR) allowing CTCs known as the G\u00f6del metric; and since then other GR solutions containing CTCs have been found, such as the Tipler cylinder and traversable wormholes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In mathematical physics, a closed timelike curve (CTC) is a world line in a Lorentzian manifold, of a material particle in spacetime, that is \u201cclosed\u201d, returning to its starting point. This possibility was first discovered by Willem Jacob van Stockum in 1937[1] and later confirmed by Kurt G\u00f6del in 1949,[2] who discovered a solution to [\u2026]<\/p>\n","protected":false},"author":661,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,41,2229,48],"tags":[],"class_list":["post-154689","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-information-science","category-mathematics","category-particle-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/154689","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/661"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=154689"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/154689\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=154689"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=154689"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=154689"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}