Strings theory4/6/2023 Text and images may be altered, removed, or added to as an editorial decision to keep information current. It's an intriguing way to cover all our bases, but given the immense challenges involved in verifying the existence of these hypothetical, tiny dimensions, M Theory – like all string theories – will more than likely remain on the 'nice idea, shame about the lack of facts' list for a while yet.Īll topic-based articles are determined by fact checkers to be correct and relevant at the time of publishing. It requires precisely 11 tiny dimensions, and he called it M Theory (although weirdly enough, the M doesn't really stand for anything). In the field of particle physics, string theory brings together quantum mechanics and Albert Einsteins general theory of relativity. In the 1990s, American theoretical physicist Edward Witten identified overlapping themes in a handful of potentially correct string theories and came up with a single version consistent with all of them. String theories emerged from early attempts to explain unusual activity in bonds between pairs of particles called quarks, as if they were connected by stretched pieces of string. Since these models provide descriptions for both general relativity and quantum mechanics, they continue to attract attention as a potential solution that might point the way towards a ' theory of everything'. Thinking this way, for example, allows gravity to be more easily described in quantum terms. Still, the mathematics behind string theories combines several different concepts in a way that has many physicists convinced reality almost certainly has string theory-like features. While technically these string-based models are 'theories' in a mathematical sense, they haven't been accepted as robust physical explanations of nature since most of their predictions are currently impractical, if not impossible, to test or observe. The one complication for our poor brains is that these vibrations need to wiggle along nearly a dozen different dimensions to account for a particle's range of properties. Send us feedback.To create various kinds of vibrations, tension on the hypothetical string need only be loosed or tightened, which allows theoretical physicists to account for the various characteristics of a fundamental particle through just one basic factor. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'string theory.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. 2022 A couple of years later, Brian Swingle, a theoretical physicist then at Stanford working on string theory, quantum gravity and other related subjects, reached out to her with an unusual question. String theory is the ultimate unification of particles and forces - the only fundamental object is a string - different particles are strings with different. String theory, the idea that the fundamental building blocks of nature are string-like rather than point-like, had been around since the late. 2022 Dine's enthusiastic storytelling makes the read worth it for those who want to finally wrap their mind around string theory or the Higgs boson and are up for an intellectual challenge.Īmy Brady, Scientific American, 1 Feb. For 60 years the Kaluza-Klein Theory of extra spatial dimensions that we explored in the previous article existed only as a mathematical oddity. Joanna Thompson, Scientific American, 5 Apr. Building on the successes of fundamental particle physics and general relativity, string theory attempts to dig deeper into reality and to come up with a more. Paul Sutter, Ars Technica, Sullivan spoke to Scientific American about his recent win, his career trajectory and how geometry and string theory intersect. 2022 And indeed, some theorists have discovered that string theory may allow the existence of stable wormholes. What is string theory What is it from a scientific perspective What does it mean in reality How do we Utilise it in our lives Can we not just try and do. 2022 Today the most popular candidate theory of quantum gravity among physicists is string theory.Īdam Becker, Scientific American, 20 Jan. Paul Sutter, Ars Technica, Other researchers have looked for answers in a specific theory of quantum gravity: string theory. 2022 Alas, string theory is not complete and so far has failed to provide a solvable theory of physics. Recent Examples on the Web Steven Abel and Keith Dienes showed how UV-IR mixing in string theory might address both the hierarchy and cosmological constant problems.
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