{"id":214643,"date":"2025-05-24T06:17:45","date_gmt":"2025-05-24T11:17:45","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/05\/detecting-the-primordial-black-holes-that-could-be-todays-dark-matter"},"modified":"2025-05-24T06:17:45","modified_gmt":"2025-05-24T11:17:45","slug":"detecting-the-primordial-black-holes-that-could-be-todays-dark-matter","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/05\/detecting-the-primordial-black-holes-that-could-be-todays-dark-matter","title":{"rendered":"Detecting the primordial black holes that could be today\u2019s dark matter"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/detecting-the-primordial-black-holes-that-could-be-todays-dark-matter.jpg\"><\/a><\/p>\n<p>Besides particles like sterile neutrinos, axions and weakly interacting massive particles (WIMPs), a leading candidate for the cold dark matter of the universe are primordial black holes\u2014black holes created from extremely dense conglomerations of subatomic particles in the first seconds after the Big Bang.<\/p>\n<p>Primordial black holes (PBHs) are classically stable, but as shown by Stephen Hawking in 1975, they can evaporate via <a href=\"https:\/\/phys.org\/tags\/quantum+effects\/\" rel=\"tag\" class=\"\">quantum effects<\/a>, radiating nearly like a blackbody. Thus, they have a lifetime; it\u2019s proportional to the cube of their initial mass. As it\u2019s been 13.8 billion years since the Big Bang, only PBHs with an initial mass of a trillion kilograms or more should have survived to today.<\/p>\n<p>However, it has been <a href=\"https:\/\/journals.aps.org\/prd\/abstract\/10.1103\/PhysRevD.110.056029\" target=\"_blank\">suggested<\/a> that the lifetime of a black hole might be considerably longer than Hawking\u2019s prediction due to the memory burden effect, where the load of information carried by a black hole stabilizes it against evaporation.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Besides particles like sterile neutrinos, axions and weakly interacting massive particles (WIMPs), a leading candidate for the cold dark matter of the universe are primordial black holes\u2014black holes created from extremely dense conglomerations of subatomic particles in the first seconds after the Big Bang. Primordial black holes (PBHs) are classically stable, but as shown by [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,48,1617],"tags":[],"class_list":["post-214643","post","type-post","status-publish","format-standard","hentry","category-cosmology","category-particle-physics","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/214643","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\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=214643"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/214643\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=214643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=214643"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=214643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}