{"id":99316,"date":"2025-05-13T23:32:09","date_gmt":"2025-05-13T23:32:09","guid":{"rendered":"https:\/\/www.europesays.com\/uk\/99316\/"},"modified":"2025-05-13T23:32:09","modified_gmt":"2025-05-13T23:32:09","slug":"scientists-propose-breakthrough-model-for-the-long-sought-theory-of-everything","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/uk\/99316\/","title":{"rendered":"Scientists Propose Breakthrough Model for the Long-Sought ‘Theory of Everything’"},"content":{"rendered":"

A long-elusive \u201ctheory of everything,\u201d also known as a unified field theory, may finally be within reach as Finnish researchers at Aalto University unveil a new quantum theory of gravity<\/a> that is compatible with the standard model<\/a> of particle physics.<\/p>\n

Physicists have long struggled to understand how our universe fits together due to discrepancies between quantum<\/a> field theory and Einstein\u2019s theory of relativity<\/a>\u2014two foundational pillars of modern physics that each work well independently, but fail to align.<\/p>\n

Modern technologies, from airplanes in flight to the GPS systems that track them, rely heavily on physics, and could be significantly advanced if the relationship between quantum<\/a> mechanics and gravity<\/a> were finally understood.<\/p>\n

Producing a Theory of Everything<\/p>\n

\u201cA theory that coherently describes all fundamental forces of nature is often called the Theory of Everything,\u201d said<\/a> lead author Mikko Partanen. \u201cSome fundamental questions of physics still remain unanswered. For example, the present theories do not yet explain why there is more matter than antimatter in the observable universe.\u201d<\/p>\n

The Finnish researchers had to walk a fine line to develop a theory where particles interact through a field, known as a gauge theory.<\/p>\n

\u201cThe most familiar gauge field is the electromagnetic field. When electrically charged particles interact with each other, they interact through the electromagnetic field, which is the pertinent gauge field,\u201d explained co-author Jukka Tulkki. \u201cSo when we have particles which have energy, the interactions they have just because they have energy would happen through the gravitational field.\u201d<\/p>\n

Physicists have long struggled to develop a gauge theory of gravity that integrates with the gauge theories for electromagnetism, the weak nuclear force, and the strong nuclear force. The Standard Model of particle physics unifies the gauge theories describing those three fundamental forces.<\/p>\n

\u201cThe main idea is to have a gravity gauge theory with a symmetry that is similar to the Standard Model symmetries, instead of basing the theory on the very different kind of spacetime symmetry of general relativity,\u201d said Partanen.<\/p>\n

From the Smallest to the Largest<\/p>\n

The absence of such a unifying theory has made understanding how the universe behaves at all scales difficult. Quantum theory governs the smallest, probabilistic particle interactions, while general relativity describes large-scale gravitational phenomena. Although both models are independently successful, they remain incompatible, necessitating a quantum theory of gravity to bridge the gap.<\/p>\n

\u201cA quantum theory of gravity is needed to understand what kind of phenomena there are in cases where there\u2019s a gravitational field and high energies,\u201d said Partanen.<\/p>\n

Such scenarios include black hole singularities and the very early universe, where current models begin to break down.<\/p>\n

Partanen and Tulkki\u2019s theory still needs to be fully proven. Having already resolved the first-order terms, they are currently addressing the challenge of renormalization, dealing with the infinities that can arise in quantum theories.<\/p>\n

\t\t <\/p>\n

\t\t\t
\n\t\t\t\t\"thermogalvanic\t\t\t<\/a>
\n\t\t
\n\t\t\t\t\t <\/p>\n

\u201cIf renormalization doesn\u2019t work for higher-order terms, you\u2019ll get infinite results. So it\u2019s vital to show that this renormalization continues to work,\u201d explained Tulkki. \u201cWe still have to make a complete proof, but we believe it\u2019s very likely we\u2019ll succeed.\u201d<\/p>\n

\u201cI can\u2019t say when, but I can say we\u2019ll know much more about that in a few years,\u201d added Partanen.<\/p>\n

The researchers have released the current version of their theory to the scientific community for feedback and further development.<\/p>\n

\u201cLike quantum mechanics and the theory of relativity before it, we hope our theory will open countless avenues for scientists to explore,\u201d Partanen concluded.<\/p>\n

The paper, \u201cGravity generated by four one-dimensional unitary gauge symmetries and the Standard Model<\/a>\u201d appeared in National Science Review on April 25, 2025.<\/p>\n

Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at\u00a0<\/b>ryan@thedebrief.org<\/b><\/a>, and follow him on Twitter <\/b>@mdntwvlf<\/b><\/a>.<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"A long-elusive \u201ctheory of everything,\u201d also known as a unified field theory, may finally be within reach as…\n","protected":false},"author":2,"featured_media":99317,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3845],"tags":[40511,46122,74,38197,70,46123,38198,45999,16,15],"class_list":{"0":"post-99316","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-physics","8":"tag-aalto-university","9":"tag-general-relativity","10":"tag-physics","11":"tag-quantum-gravity","12":"tag-science","13":"tag-standard-model-of-particle-physics","14":"tag-theory-of-everything","15":"tag-theory-of-gravity","16":"tag-uk","17":"tag-united-kingdom"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@uk\/114503139352676588","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/99316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/comments?post=99316"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/posts\/99316\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media\/99317"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/media?parent=99316"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/categories?post=99316"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/uk\/wp-json\/wp\/v2\/tags?post=99316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}