QED coupled to QEG

By U. Harst, Martin Reuter. 2011

157 citations recorded by the source corpus.

We discuss the non-perturbative renormalization group flow of Quantum Electrodynamics (QED) coupled to Quantum Einstein Gravity (QEG) and explore the possibilities for defining its continuum limit at a fixed point that would lead to a non-trivial, i.e. interacting field theory. We find two fixed points suitable for the Asymptotic Safety construction. In the first case, the fine-structure constant α vanishes at the fixed point and its infrared (“renormalized”) value is a free parameter not determined by the theory itself. In the second case, the fixed point value of α is non-zero, and its infrared value is a computable prediction of the theory.

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/4b6ef034bcf572d1ed664d5d8ba116e112a1e8f7

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. A. Eichhorn
2. L. Canet
3. W. Metzner
4. N. Dupuis
5. Jan M. Pawlowski
6. M. Tissier
7. N. Wschebor

In Nuclear and High Energy Physics

1. A. Eichhorn
2. W. Metzner
3. M. Tissier
4. N. Dupuis
5. N. Wschebor
6. L. Canet
7. Jan M. Pawlowski
8. Markus Q. Huber

In Statistical and Nonlinear Physics

1. L. Canet
2. A. Eichhorn
3. W. Metzner
4. N. Dupuis
5. Jan M. Pawlowski
6. M. Tissier
7. N. Wschebor

Citations in the corpus

• The nonperturbative functional renormalization group and its applications (2020, background): “Once the Higgs vacuum expectation value, which remains a relevant parameter, unless quantum-gravity effects are very strong [1266, 1286], is set, the Higgs mass [1287], top quark mass [1273], bottom quark mass [1288] and Abelian gauge coupling [1281, 1283, 1288] become calculable within the toy mode”