Quantum Weyl Invariance and Cosmology
arXiv:1511.05342 · doi:10.1016/j.physletb.2016.06.034
Abstract
Equations for cosmological evolution are formulated in a Weyl invariant formalism to take into account possible Weyl anomalies. Near two dimensions, the renormalized cosmological term leads to a nonlocal energy-momentum tensor and a slowly decaying vacuum energy. A natural generalization to four dimensions implies a quantum modification of Einstein field equations at long distances. It offers a new perspective on time-dependence of couplings and naturalness with potentially far-reaching consequences for the cosmological constant problem, inflation, and dark energy.
4 pages
References in corpus (9)
- De Sitter Space and Eternity
- Quantum Contributions to Cosmological Correlations II: Can These Corrections Become Large?
- The IR stability of de Sitter: Loop corrections to scalar propagators
- Cosmological Dark Energy: Prospects for a Dynamical Theory
- On the proper treatment of massless fields in Euclidean de Sitter space
- Inflationary solutions in asymptotically safe f(R) theories
- The Zeta-Zeta Correlator Is Time Dependent
- Boltzmann equation in de Sitter space
- Correlation Functions of Massless Interacting Scalar Fields in de Sitter Space
Cited by in corpus (9)
- Back(reaction) to the Future in the Unruh-de Sitter State
- Quantum Gravity from Timelike Liouville theory
- Quantum Cosmology Near Two Dimensions
- Is "Dark Energy" a Quantum Vacuum Energy?
- 2D quantum gravity partition function on the fluctuating sphere
- BRST cohomology of timelike Liouville theory
- Nonlocal Quantum Effective Actions in Weyl-Flat Spacetimes
- Conformal anomalies and the Einstein Field Equations
- Quantum Cosmology in Four Dimensions