{"id":6297,"date":"2023-05-29T03:11:04","date_gmt":"2023-05-29T03:11:04","guid":{"rendered":"https:\/\/power2innovate.com\/how-we-could-discover-quantum-gravity-without-rebuilding-space-time\/"},"modified":"2023-05-29T03:11:04","modified_gmt":"2023-05-29T03:11:04","slug":"how-we-could-discover-quantum-gravity-without-rebuilding-space-time","status":"publish","type":"post","link":"https:\/\/power2innovate.com\/how-we-could-discover-quantum-gravity-without-rebuilding-space-time\/","title":{"rendered":"How we could discover quantum gravity without rebuilding space-time"},"content":{"rendered":"<p> \n<\/p>\n<div id=\"\">\n<figure class=\"article-image-inline ArticleImage\" data-method=\"replace-inline-image\">\n<div class=\"ArticleImage__Wrapper\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=1200\" srcset=\"https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=100 100w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=200 200w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=249 249w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=300 300w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=400 400w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=500 500w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=600 600w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=700 700w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=800 800w, https:\/\/images.newscientist.com\/wp-content\/uploads\/2023\/05\/09115714\/SEI_154688684.jpg?width=900 900w\" class=\"image alignnone wp-image-2372515 size-full ReplaceImageLazyload\" sizes=\"(min-width: 1130px) 900px, (min-width: 1025px) 900, (min-width: 768px) calc(100vw - 30px), calc(100vw - 30px)\" alt=\"Quantum particles, quantum computer, galaxy-like ; Shutterstock ID 2194720327; purchase_order: -; job: -; client: -; other: -\" width=\"1350\" height=\"900\" data-credit=\"Shutterstock\/Sola Solandra\"\/><\/div><figcaption class=\"ArticleImageCaption\">\n<div class=\"ArticleImageCaption__CaptionWrapper\">\n<p class=\"ArticleImageCaption__Credit ArticleImageCaption__Credit--NoTitle\">Shutterstock\/Sola Solandra<\/p>\n<\/div>\n<\/figcaption><\/figure>\n<p>MODERN physics has two stories to tell about our universe. The first says it is fundamentally made of space-time: a continuous, stretchy fabric that has ballooned since the dawn of time. The other says it is fundamentally made of indivisible things that can\u2019t decide where they are, or even when.<\/p>\n<p>Both stories are compelling, describing what we observe with incredible accuracy. The big difference, though, is the scale at which they apply. Albert Einstein\u2019s theory of <a href=\"https:\/\/www.newscientist.com\/definition\/general-relativity\/\">general relativity<\/a>, which describes gravity, space and time, rules over very massive objects and cosmic distances. <a href=\"https:\/\/www.newscientist.com\/definition\/quantum-physics\/\">Quantum physics<\/a>, meanwhile, governs tiny, sprightly atoms and subatomic particles.<\/p>\n<p>Ultimately, both stories can\u2019t be true. Nowhere is this more apparent than at the <a href=\"https:\/\/www.newscientist.com\/article\/mg24432601-200-big-bang-retold-the-weird-twists-in-the-story-of-the-universes-birth\/\">big bang<\/a>, where everything in the universe was compacted into an infinitesimally small point. Here, you need a single theory that encompasses gravity and the quantum realm. \u201cWhy we\u2019re here is the big question,\u201d says <a href=\"https:\/\/www.imperial.ac.uk\/people\/t.wiseman\">Toby Wiseman<\/a>, a theorist at Imperial College London. \u201cIt seems that quantum gravity is the only answer.\u201d<\/p>\n<p>Alas, it is an answer we are yet to find, despite many decades of searching. Quantum gravity means a reconciliation of the continuous and the indivisible, the predictable and the random. There are many ideas, but none can totally incorporate everything. \u201cWe\u2019re still no better off at understanding the beginning of space and time,\u201d says Wiseman.<\/p>\n<p>Most physicists attempting this begin with quantum physics, the workhorse of which is quantum field theory. This describes three of the <a href=\"https:\/\/www.newscientist.com\/article\/mg24632821-000-we-have-seen-hints-of-a-new-fundamental-force-of-nature\/\">four forces of nature<\/a> \u2013 electromagnetism, the strong nuclear force and the weak nuclear force \u2013 by \u201cquantising\u201d them as force-carrying elementary particles. It \u2026<\/p>\n<\/p><\/div>\n\n<br \/><a href=\"https:\/\/www.newscientist.com\/article\/mg25834382-100-how-we-could-discover-quantum-gravity-without-rebuilding-space-time\/?utm_campaign=RSS%7CNSNS&#038;utm_source=NSNS&#038;utm_medium=RSS&#038;utm_content=physics\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Shutterstock\/Sola Solandra MODERN physics has two stories to tell about our universe. The first says it is fundamentally made of space-time: a continuous, stretchy fabric that has ballooned since the dawn of time. The other says it is fundamentally made of indivisible things that can\u2019t decide where they are, or even when. Both stories are &hellip;<\/p>\n","protected":false},"author":1,"featured_media":6299,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[4974],"tags":[2111,4304,4990,5005,4985],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How we could discover quantum gravity without rebuilding space-time - Innovation Discoveries<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/power2innovate.com\/how-we-could-discover-quantum-gravity-without-rebuilding-space-time\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How we could discover quantum gravity without rebuilding space-time - Innovation Discoveries\" \/>\n<meta property=\"og:description\" content=\"Shutterstock\/Sola Solandra MODERN physics has two stories to tell about our universe. 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