{"id":30,"date":"2015-02-08T16:19:11","date_gmt":"2015-02-08T16:19:11","guid":{"rendered":"http:\/\/universe-origins.dk\/sloth\/?p=30"},"modified":"2026-09-04T08:27:26","modified_gmt":"2026-09-04T08:27:26","slug":"wellcome","status":"publish","type":"post","link":"https:\/\/universe-origins.dk\/sloth\/?p=30","title":{"rendered":"Welcome!"},"content":{"rendered":"<p><a href=\"https:\/\/portal.findresearcher.sdu.dk\/da\/persons\/sloth\">Martin S. Sloth<\/a> is a professor at the <a title=\"SDU\" href=\"http:\/\/www.sdu.dk\/en\/\" target=\"_blank\" rel=\"noopener noreferrer\">University of Southern Denmark (SDU)<\/a> and the leader of the <a title=\"Universe Origins\" href=\"http:\/\/universe-origins.dk\/sloth\">Universe Origins group<\/a>. He is the first professor of theoretical cosmology in Denmark. Selected research highlights:<\/p>\n<ul>\n<li>His proposal of the <a href=\"https:\/\/arxiv.org\/abs\/hep-ph\/0109214\">curvaton mechanism<\/a>. \u00a0<\/li>\n<li>His work on non-Gaussianity and the discovery of <a href=\"https:\/\/arxiv.org\/abs\/0811.3934\">the SSV consistency relations for exchange diagrams<\/a>.<\/li>\n<li>His work on <a href=\"https:\/\/arxiv.org\/abs\/astro-ph\/0604488\">IR effects in inflation<\/a> and the discovery of <a href=\"https:\/\/arxiv.org\/abs\/1005.1056\">the GS consistency relations for IR loop effects in de Sitter and inflationary spacetimes.<\/a><\/li>\n<li><a href=\"https:\/\/arxiv.org\/abs\/1609.06318\">The FSS relations of soft theorems, soft charges, and asymptotic symmetries<\/a>, and the <a class=\"result-item-title\" href=\"https:\/\/arxiv.org\/abs\/2502.03520\" data-test-id=\"literature-result-title-link\"><span data-test-id=\"literature-detail-title\"><span class=\"__Latex__\">Soft gravitons as Goldstone modes of spontaneously broken asymptotic symmetries in de Sitter spacetimes<\/span><\/span><\/a>.<\/li>\n<li>His work on <a href=\"https:\/\/arxiv.org\/abs\/1305.7151\">Inflationary magnetogenesis<\/a> and the discovery of <a href=\"https:\/\/arxiv.org\/abs\/1207.4187\">the consistency relations for cosmic magnetic fields<\/a>. \u00a0<\/li>\n<li>His universal constraints on <a href=\"https:\/\/arxiv.org\/abs\/1409.5799\">axions from inflation<\/a>.<\/li>\n<li>His paradigm of <a href=\"https:\/\/arxiv.org\/abs\/1511.03278\">Planckian Interacting Dark Matter (PIDM)<\/a>. \u00a0<\/li>\n<li>Most recently, he proposed a solution to the Hubble tension, <a href=\"https:\/\/arxiv.org\/abs\/1910.10739\">New Early Dark Energy (NEDE)<\/a>, and predicted and found around 2.5\u03c3 evidence for a <a href=\"https:\/\/arxiv.org\/abs\/2512.15870\">Dark Acoustic Oscillation (DAO)<\/a> in the DESI data, as well as <a href=\"https:\/\/arxiv.org\/abs\/2604.26541\">indications of features in the primordial power spectrum from inflation in the ACT data<\/a>.\u00a0<\/li>\n<\/ul>\n<p>We mainly work on understanding the origin of the universe, dark matter, and dark energy. You can find more <a title=\"Research\" href=\"http:\/\/universe-origins.dk\/sloth\/?page_id=64\">information about our research here<\/a>. If you are interested in more popular descriptions of our research, you can look for some of our <a title=\"Outreach\" href=\"http:\/\/universe-origins.dk\/sloth\/?page_id=46\">outreach activities here<\/a>. On the group page, you can find a description of the <a title=\"Group\" href=\"http:\/\/universe-origins.dk\/sloth\/?page_id=72\">group members<\/a>. Finally, on the resource page, you can find <a href=\"https:\/\/universe-origins.dk\/sloth\/?page_id=732\">lecture notes I made for various courses and publicly available codes that we developed<\/a> in connection with our research. \u00a0\u00a0<\/p>\n<p>E-mail: sloth@sdu.dk<\/p>\n<p>Full list of publications of M. S. Sloth: <a href=\"https:\/\/inspirehep.net\/literature?sort=mostrecent&amp;size=25&amp;page=1&amp;q=a%20sloth%2C%20m.&amp;ui-citation-summary=true\">HEP-INSPIRE<\/a>, <a href=\"https:\/\/scholar.google.com\/citations?user=Sux_Yv4AAAAJ&amp;hl=da&amp;oi=ao\">Google Scholar<\/a>.<\/p>\n<p>M. S. Sloth on <a href=\"https:\/\/www.linkedin.com\/in\/martin-s-sloth\/\">Linkedin<\/a><\/p>\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-image size-thumbnail is-style-rounded\"><a class=\"https:\/\/universe-origins.dk\/\" href=\"https:\/\/universe-origins.dk\/\" rel=\"https:\/\/universe-origins.dk\/\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-150x150.png\" alt=\"\" class=\"wp-image-500\" srcset=\"https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-150x150.png 150w, https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-300x300.png 300w, https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-1024x1024.png 1024w, https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-768x768.png 768w, https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39-1536x1536.png 1536w, https:\/\/universe-origins.dk\/sloth\/wp-content\/uploads\/2023\/12\/Screenshot-2023-12-08-at-20.30.39.png 2028w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Martin S. Sloth is a professor at the University of Southern Denmark (SDU) and the leader of the Universe Origins group. He is the first professor of theoretical cosmology in Denmark. Selected research highlights: His proposal of the curvaton mechanism. &hellip; <a href=\"https:\/\/universe-origins.dk\/sloth\/?p=30\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":true,"template":"","format":"aside","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-30","post","type-post","status-publish","format-aside","hentry","category-physics","post_format-post-format-aside"],"_links":{"self":[{"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/posts\/30","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30"}],"version-history":[{"count":83,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions"}],"predecessor-version":[{"id":750,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=\/wp\/v2\/posts\/30\/revisions\/750"}],"wp:attachment":[{"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/universe-origins.dk\/sloth\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}