Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation
General Relativity and Quantum Cosmology
2021-07-12 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We present two scale invariant models of inflation in which the addition of quadratic in curvature terms in the usual Einstein-Hilbert action, in the context of Palatini formulation of gravity, manages to reduce the value of the tensor-to-scalar ratio. In both models the Planck scale is dynamically generated via the vacuum expectation value of the scalar fields.
Keywords
Cite
@article{arxiv.2107.04408,
title = {Scale-invariance, dynamically induced Planck scale and inflation in the Palatini formulation},
author = {Ioannis D. Gialamas and Alexandros Karam and Thomas D. Pappas and Antonio Racioppi and Vassilis C. Spanos},
journal= {arXiv preprint arXiv:2107.04408},
year = {2021}
}
Comments
10 pages, 5 figures, Contribution to Proceedings of HEP 2021, Thessaloniki, Greece, Based on: 2006.09124 and 2104.04550. arXiv admin note: text overlap with arXiv:2104.04550