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pro vyhledávání: '"Asymptotic safety"'
Autor:
Renata Ferrero, Thomas Thiemann
Publikováno v:
Universe, Vol 10, Iss 11, p 410 (2024)
In a recent contribution, we identified possible points of contact between the asymptotically safe and canonical approaches to quantum gravity. The idea is to start from the reduced phase space (often called relational) formulation of canonical quant
Externí odkaz:
https://doaj.org/article/42d0a40f79274283a15517cd969ee2bb
Autor:
Sándor Nagy
Publikováno v:
Symmetry, Vol 16, Iss 8, p 1074 (2024)
The asymptotically safe gravity is investigated in the framework of the functional renormalization group method. The low energy region of the model can account for the cosmological behavior, where it is assumed that the nonlocal effects play a crucia
Externí odkaz:
https://doaj.org/article/217ca05f4c6e4b24b8bb56f2d5e9659d
Publikováno v:
Physics Letters B, Vol 847, Iss , Pp 138311- (2023)
The anomalous scaling of Newton's constant around the Reuter fixed point is dynamically computed using the functional flow equation approach. Specifically, we thoroughly analyze the flow of the most general conformally reduced Einstein-Hilbert action
Externí odkaz:
https://doaj.org/article/94ce0f3128ba450fa54c741987d577e8
Akademický článek
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Akademický článek
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Autor:
Alexander Bednyakov, Alfiia Mukhaeva
Publikováno v:
Symmetry, Vol 15, Iss 8, p 1497 (2023)
Asymptotic safety is a remarkable example when fruitful ideas borrowed from statistical physics proliferate to high-energy physics. The concept of asymptotic safety is tightly connected to fixed points (FPs) of the renormalization-group (RG) flow, an
Externí odkaz:
https://doaj.org/article/f241b96b25404cbea5f0f06ea1c1c204
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
Externí odkaz:
https://doaj.org/article/449d3bf61f9c47058b00f9719bca75f1
Autor:
Buchbinder, Iosif L., author, Shapiro, Ilya L., author
Publikováno v:
Introduction to Quantum Field Theory with Applications to Quantum Gravity, 2021.
Externí odkaz:
https://doi.org/10.1093/oso/9780198838319.003.0021
Autor:
Jan M. Pawlowski, Manuel Reichert
Publikováno v:
Frontiers in Physics, Vol 8 (2021)
In this contribution, we discuss the asymptotic safety scenario for quantum gravity with a functional renormalization group approach that disentangles dynamical metric fluctuations from the background metric. We review the state of the art in pure gr
Externí odkaz:
https://doaj.org/article/baf96acd6c9c43e28cce471e58c1a81e
Autor:
Lesław Rachwał
Publikováno v:
Universe, Vol 8, Iss 4, p 229 (2022)
We present and discuss well known conditions for ultraviolet finiteness and asymptotic safety. The requirements for complete absence of ultraviolet divergences in quantum field theories and existence of a non-trivial fixed point for renormalization g
Externí odkaz:
https://doaj.org/article/7f952b3cfa2b44169475fcf73d757493