{"id":42874,"date":"2021-05-28T20:25:20","date_gmt":"2021-05-28T20:25:20","guid":{"rendered":"https:\/\/yogaesoteric.net\/?p=42874"},"modified":"2021-05-28T20:25:20","modified_gmt":"2021-05-28T20:25:20","slug":"black-holes-are-portals-to-other-universes-according-to-new-quantum-results","status":"publish","type":"post","link":"https:\/\/yogaesoteric.net\/en\/black-holes-are-portals-to-other-universes-according-to-new-quantum-results\/","title":{"rendered":"Black holes are \u2018portals to other universes,\u2019 according to new quantum results"},"content":{"rendered":"

According to Albert Einstein\u2019s theory of general relativity, black holes are uninhabitable chasms of spacetime that end in a \u201csingularity<\/em>,\u201d or a mass of infinite density. It\u2019s a place so bleak that even the laws of physics break down there. But what if black holes aren\u2019t so forbidding? What if they are instead some kind of intergalactic stargate, or maybe even a passageway into a whole other universe?<\/p>\n

\"\"<\/a>It may sound like the premise for a clever science-fiction movie, but new calculations by quantum physicists now suggest that the stargate idea might actually be the better theory. According to the startling new results, black holes do not culminate in a singularity. Rather, they represent \u201cportals to other universes<\/em>,\u201d reports New Scientist<\/em>.<\/p>\n

Loop quantum gravity<\/strong><\/p>\n

This new theory is based on a concept known as \u2018loop quantum gravity<\/em>\u2019 (or LQG). It was first formulated as a way of merging standard quantum mechanics and standard general relativity, in order to remedy incompatibilities between the two fields. Basically, LQG proposes that spacetime is granular, or atomic, in nature; It is made up of minuscule, indivisible chunks about the same size as the Planck length \u2013 which roughly amounts to 10-35 meters in size.<\/p>\n

Researchers Jorge Pullin from Lousiana State University, and Rodolfo Gambini from the University of the Republic in Montevideo, Uruguay, crunched the numbers to see what would happen inside a black hole under the parameters of LQG. What they found was far different from what occurs according to general relativity alone: there was no singularity. Instead, just as the black hole began to squeeze tight, it suddenly loosened its grip again, as if a door was being opened.<\/p>\n

Passageways of the Universe<\/strong><\/p>\n

It might help to conceptualize exactly what this means if you imagine yourself traveling into a black hole. Under general relativity, falling into a black hole is, in some ways, much like falling into a very deep pit that has a bottom, only instead of hitting the bottom, you get pressed into a single point \u2013 a singularity \u2013 of infinite density. With both the deep pit and the black hole, there is no \u201cother side<\/em>.\u201d The bottom stops your fall through the pit, and the singularity \u201cstops<\/em>\u201d your fall through the black hole (or at least, at the singularity it no longer makes sense to say you\u2019re \u201cfalling\u201d).<\/p>\n

Your experience would be much different traveling into a black hole according to LQG, however. At first you might not notice the difference: gravity would increase rapidly. But just as you were nearing what ought to be the black hole\u2019s core \u2013 just as you\u2019re expecting to be squashed into the singularity \u2013 gravity would instead begin to decrease. It would be as if you were swallowed, only to be spit out on the other side.<\/p>\n

In other words, LQG black holes are less like holes and more like tunnels, or passageways. But passageways to where? According to the researchers, they could be shortcuts to other parts of our universe. Or they could be portals to other universes entirely.<\/p>\n

Interestingly, this same principle can be applied to the Big Bang. According to conventional theory, the Big Bang started with a singularity. But if time is rewound according to LQG instead, the universe does not begin with a singularity. Rather, it collapses into a sort of tunnel, which leads into another, older universe. This has been used as evidence for one of the Big Bang\u2019s competing theories: the Big Bounce.<\/p>\n

Scientists don\u2019t have enough evidence to decide whether this new theory is actually true, but LQG does have one aspect going for it: it\u2019s more beautiful. Or rather, it avoids certain paradoxes that conventional theories do not. For instance, it avoids the black hole information paradox. According to relativity, the singularity inside a black hole operates as a sort of firewall, which means that information that gets swallowed by the black hole gets lost forever. Information loss, however, is not possible according to quantum physics.<\/p>\n

Since LQG black holes have no singularity, that information need not be lost. \u201cInformation doesn\u2019t disappear, it leaks out<\/em>,\u201d said Jorge Pullin.<\/p>\n

 <\/p>\n

yogaesoteric<\/strong>
\nMay 27, 2021<\/strong><\/p>\n

\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

According to Albert Einstein\u2019s theory of general relativity, black holes are uninhabitable chasms of spacetime that end in a \u201csingularity,\u201d or a mass of infinite density. It\u2019s a place so bleak that even the laws of physics break down there. But what if black holes aren\u2019t so forbidding? What if they are instead some kind […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[1369],"tags":[],"class_list":["post-42874","post","type-post","status-publish","format-standard","hentry","category-science-technology-1602-en"],"_links":{"self":[{"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/posts\/42874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/comments?post=42874"}],"version-history":[{"count":1,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/posts\/42874\/revisions"}],"predecessor-version":[{"id":42878,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/posts\/42874\/revisions\/42878"}],"wp:attachment":[{"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/media?parent=42874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/categories?post=42874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yogaesoteric.net\/en\/wp-json\/wp\/v2\/tags?post=42874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}