Emergent Planck mass and dark energy from affine gravity
arXiv:2002.12178 · doi:10.1134/S004057792110007X
Abstract
We introduce a novel model of affine gravity, which implements the no-scale scenario. Namely, Planck mass and Hubble constant emerge dynamically, through the mechanism of spontaneous breaking of scale-invariance. Moreover, in our model the time direction and non--degenerate metric emerge dynamically as well. This naturally gives rise to the inflation and may server as a starting point for the "birth" of the Universe. We show that our model is phenomenologically viable, both from the perspective of the direct tests of gravity and cosmological evolution.
References in corpus (11)
- The Confrontation between General Relativity and Experiment
- Quantum Gravity at a Lifshitz Point
- Membranes at Quantum Criticality
- Infrared-modified gravities and massive gravitons
- Scale invariance, unimodular gravity and dark energy
- Lorentz-violating graviton masses: getting around ghosts, low strong coupling scale and VDVZ discontinuity
- New Action Principle for General Relativity
- Non-metric gravity: A status report
- Gravitation, electromagnetism and cosmological constant in purely affine gravity
- Completing Lorentz violating massive gravity at high energies
- A unified, purely affine theory of gravitation and electromagnetism