Cosmological bounds on the field content of asymptotically safe gravity-matter models
arXiv:1803.02355 · doi:10.1016/j.physletb.2018.06.047
Abstract
We use the non-Gaussian fixed points (NGFPs) appearing in the renormalization group flow of gravity and gravity-matter systems to construct models of NGFP-driven inflation via a renormalization group improvement scheme. The cosmological predictions of these models depend sensitively on the characteristic properties of the NGFPs, including their position and stability coefficients, which in turn are determined by the field content of the underlying matter sector. We demonstrate that the NGFPs appearing in gravity-matter systems where the matter content is close to the one of the standard model of particle physics are the ones compatible with cosmological data. Somewhat counterintuitively, the negative fixed point value of the dimensionless cosmological constant is essential for these findings.
10 pages, 2 figures. V2: references added. Matches published version
References in corpus (19)
- Cosmological viability of f(R)-gravity as an ideal fluid and its compatibility with a matter dominated phase
- Asymptotic safety in higher-derivative gravity
- Fixed Points of Higher Derivative Gravity
- Ultraviolet properties of f(R)-Gravity
- On the renormalization group flow of f(R)-gravity
- Asymptotically Safe Lorentzian Gravity
- Taming perturbative divergences in asymptotically safe gravity
- Renormalization group improved gravitational actions: a Brans-Dicke approach
- Asymptotic safety in the f(R) approximation
- Top mass from asymptotic safety
- The Renormalization Group flow of unimodular f(R) gravity
- Matter Induced Bimetric Actions for Gravity
- The local potential approximation in quantum gravity
- Asymptotically safe f(R)-gravity coupled to matter I: the polynomial case
- Asymptotic Safety in Einstein Gravity and Scalar-Fermion Matter
- Inflationary solutions in asymptotically safe f(R) theories
- Renormalization Group Equation for gravity on hyperbolic spaces
- Bouncing and emergent cosmologies from ADM RG flows
- Are there scaling solutions in the O(N)-models for large N in d>4?
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