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 (34)
- f(R) Theories Of Gravity
- The Confrontation between General Relativity and Experiment
- Quantum Gravity at a Lifshitz Point
- Metric-Affine Gauge Theory of Gravity: Field Equations, Noether Identities, World Spinors, and Breaking of Dilation Invariance
- The MSM, Dark Matter and Neutrino Masses
- Membranes at Quantum Criticality
- Self-Interaction and Gauge Invariance
- Infrared-modified gravities and massive gravitons
- Born-Infeld inspired modifications of gravity
- Phases of massive gravity
- Scale invariance, unimodular gravity and dark energy
- Currents and Superpotentials in classical gauge invariant theories I. Local results with applications to Perfect Fluids and General Relativity
- Introducing Cadabra: a symbolic computer algebra system for field theory problems
- Lorentz-violating graviton masses: getting around ghosts, low strong coupling scale and VDVZ discontinuity
- Scale-invariant alternatives to general relativity
- New Action Principle for General Relativity
- Born-Infeld-Einstein theory with matter
- On the equivalence of the Einstein-Hilbert and the Einstein-Palatini formulations of general relativity for an arbitrary connection
- Dynamical Origin of the Lorentzian Signature of Spacetime
- Gravity and Unification: A review
- Why is Spacetime Lorentzian?
- Emergent Lorentz invariance from Strong Dynamics: Holographic examples
- Planck mass and inflation as consequences of dynamically broken scale invariance
- Affine theory of gravitation
- Induced Affine Inflation
- Non-metric gravity: A status report
- Gravitation, electromagnetism and cosmological constant in purely affine gravity
- Dynamical Determination of the Metric Signature in Spacetime of Nontrivial Topology
- Completing Lorentz violating massive gravity at high energies
- Are there metric theories of gravity other than General Relativity?
- A unified, purely affine theory of gravitation and electromagnetism
- Emergent metric and geodesic analysis in cosmological solutions of (torsion-free) Polynomial Affine Gravity
- Cosmological Implications of Affine Gravity
- Modifying the theory of gravity by changing independent variables