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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Asymptotic safety | 6/6 | https://en.wikipedia.org/wiki/Asymptotic_safety | reference | science, encyclopedia | 2026-05-05T13:41:25.065218+00:00 | kb-cron |
Phenomenological consequences of the asymptotic safety scenario have been investigated in many areas of gravitational physics. As an example, asymptotic safety in combination with the Standard Model allows a statement about the mass of the Higgs boson and the value of the fine-structure constant. Furthermore, it provides possible explanations for particular phenomena in cosmology and astrophysics, concerning black holes or inflation, for instance. These different studies take advantage of the possibility that the requirement of asymptotic safety can give rise to new predictions and conclusions for the models considered, often without depending on additional, possibly unobserved, assumptions.
== Criticism == Some researchers argued that the current implementations of the asymptotic safety program for gravity have unphysical features, such as the running of the Newton constant or a failure to respect BRST invariance. Others argued that the very concept of asymptotic safety is a misnomer, as it suggests a novel feature compared to the Wilsonian RG paradigm, while there is none (at least in the quantum field theory context, where this term is also used).
== See also ==
== References ==
== Further reading == Niedermaier, Max; Reuter, Martin (2006). "The Asymptotic Safety Scenario in Quantum Gravity". Living Rev. Relativ. 9 (1): 5. Bibcode:2006LRR.....9....5N. doi:10.12942/lrr-2006-5. PMC 5256001. PMID 28179875. Percacci, Roberto (2009). "Asymptotic Safety". In Oriti, D. (ed.). Approaches to Quantum Gravity: Towards a New Understanding of Space, Time and Matter. Cambridge University Press. arXiv:0709.3851. Bibcode:2007arXiv0709.3851P. Berges, Jürgen; Tetradis, Nikolaos; Wetterich, Christof (2002). "Non-perturbative renormalization flow in quantum field theory and statistical physics". Physics Reports. 363 (4–6): 223–386. arXiv:hep-ph/0005122. Bibcode:2002PhR...363..223B. doi:10.1016/S0370-1573(01)00098-9. S2CID 119033356. Reuter, Martin; Saueressig, Frank (2012). "Quantum Einstein Gravity". New J. Phys. 14 (5) 055022. arXiv:1202.2274. Bibcode:2012NJPh...14e5022R. doi:10.1088/1367-2630/14/5/055022. S2CID 119205964. Bonanno, Alfio; Saueressig, Frank (2017). "Asymptotically safe cosmology – a status report". Comptes Rendus Physique. 18 (3–4): 254. arXiv:1702.04137. Bibcode:2017CRPhy..18..254B. doi:10.1016/j.crhy.2017.02.002. S2CID 119045691. Litim, Daniel (2011). "Renormalisation group and the Planck scale". Philosophical Transactions of the Royal Society A. 69 (1946): 2759–2778. arXiv:1102.4624. Bibcode:2011RSPTA.369.2759L. doi:10.1098/rsta.2011.0103. PMID 21646277. S2CID 8888965. Nagy, Sandor (2012). "Lectures on renormalization and asymptotic safety". Annals of Physics. 350: 310–346. arXiv:1211.4151. Bibcode:2014AnPhy.350..310N. doi:10.1016/j.aop.2014.07.027. S2CID 119183995.
== External links == The Asymptotic Safety FAQs – A collection of questions and answers about asymptotic safety and a comprehensive list of references. Asymptotic Safety in quantum gravity – A Scholarpedia article about the same topic with some more details on the gravitational effective average action. The Quantum Theory of Fields: Effective or Fundamental? – A talk by Steven Weinberg at CERN on July 7, 2009. Asymptotic Safety - 30 Years Later – All talks of the workshop held at the Perimeter Institute on November 5 – 8, 2009. Four radical routes to a theory of everything – An article by Amanda Gefter on quantum gravity, published 2008 in New Scientist (Physics & Math). "Weinberg "Living with infinities" - Källén Lecture 2009". YouTube. Andrea Idini. January 14, 2022. (From 1:11:28 to 1:18:10 in the video, Weinberg gives a brief discussion of asymptotic safety. Also see Weinberg's answer to Cecilia Jarlskog's question at the end of the lecture. The 2009 Källén lecture was recorded on February 13, 2009.) Hossenfelder, Sabine (8 January 2018). "Why an Old Theory of Everything Is Gaining New Life". Quanta Magazine.