Conformal anomalies and the Einstein field equations
@article{Godazgar2016ConformalAA, title={Conformal anomalies and the Einstein field equations}, author={Hadi Godazgar and Krzysztof A. Meissner and Hermann Nicolai}, journal={Journal of High Energy Physics}, year={2016}, volume={2017}, pages={1-21} }
A bstractWe compute corrections to the Einstein field equations which are induced by the anomalous effective actions associated to the type A conformal anomaly, both for the (non-local) Riegert action, as well as for the local action with dilaton. In all cases considered we find that these corrections can be very large.
7 Citations
Non-local Effects of Conformal Anomaly
- Physics
- 2018
It is shown that the nonlocal anomalous effective actions corresponding to the quantum breaking of the conformal symmetry can lead to observable modifications of Einstein’s equations. The fact that…
Non-renormalization for non-supersymmetric black holes
- Physics
- 2017
A bstractWe analyze large logarithmic corrections to 4D black hole entropy and relate them to the Weyl anomaly. We use duality to show that counter-terms in EinsteinMaxwell theory can be expressed in…
Nonlocal quantum effective actions in Weyl-Flat spacetimes
- PhysicsJournal of High Energy Physics
- 2018
A bstractVirtual massless particles in quantum loops lead to nonlocal effects which can have interesting consequences, for example, for primordial magnetogenesis in cosmology or for computing finite…
Conformal standard model and inflation
- Physics
- 2017
This thesis presents a possible inflation scenario as a consequence of non-minimal gravitational couplings in the Conformal Standard Model. That model consists, in comparison to the SM, of additional…
Finite action principle and Hořava-Lifshitz gravity: Early universe, black holes, and wormholes
- Computer SciencePhysical Review D
- 2021
This work elaborate on the finite action in the framework of Horava-Lifshitz gravity, and shows that the beginning of the universe is flat and homogeneous, proving that the Finite Action Principle is not model-sensitive.
References
SHOWING 1-10 OF 67 REFERENCES
Conformal Decomposition of the Effective Action and Covariant Curvature Expansion
- Chemistry
- 1995
The class of effective actions exactly reproducing the conformal anomaly in 4D is considered. It is demonstrated that the freedom within this class can be fixed by the choice of the conformal gauge.…
Conformal anomalies and the gravitational effective action: The TJJ correlator for a Dirac fermion
- Physics, Geology
- 2010
We compute in linearized gravity all the contributions to the gravitational effective action due to a virtual Dirac fermion, related to the conformal anomaly. This requires, in perturbation theory,…
Conformal Anomalies -- Recent Progress
- Physics
- 1996
We present a brief review of some recent results on conformal anomalies in four and more dimensions. The discussion is intended for relativists, so some background on the quantum origin of anomalies…