Rigorous derivation of dark energy and inflation as geometry effects in Covariant Canonical Gauge Gravity
arXiv:2101.04379 · doi:10.1002/asna.202113885
Abstract
The cosmological implications of the Covariant Canonical Gauge Theory of Gravity (CCGG) are investigated. CCGG is a Palatini theory derived from first principles using the canonical transformation formalism in the covariant Hamiltonian formulation. The Einstein-Hilbert theory is thereby extended by a quadratic Riemann-Cartan term in the Lagrangian. Moreover, the requirement of covariant conservation of the stress-energy tensor leads to necessary presence of torsion. In the Friedman universe that promotes the cosmological constant to a time-dependent function, and gives rise to a geometrical correction with the EOS of dark radiation. The resulting cosmology, compatible with the CDM parameter set, encompasses bounce and bang scenarios with graceful exits into the late dark energy era. Testing those scenarios against low-z observations shows that CCGG is a viable theory.
arXiv commentContribution to the International Workshop IWARA on Astronomy and Relativistic Astrophysics, September 2020. Adjusted to Astronomische Nachrichten 2021; 8 pages, 6 figures, small correction added
References in corpus (19)
- Planck 2015 results. XIII. Cosmological parameters
- Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
- Cosmology and the Fate of Dilatation Symmetry
- Curvature Quintessence
- Local determination of the Hubble constant and the deceleration parameter
- Energy conditions in modified gravity
- Torsion Cosmology and the Accelerating Universe
- Cosmological model insensitivity of local from the Cepheid distance ladder
- Inflation, quintessence, and the origin of mass
- Cosmological dynamics with propagating Lorentz connection modes of spin zero
- Big bounce and closed universe from spin and torsion
- Regular accelerating Universe without dark energy
- Canonical Transformation Path to Gauge Theories of Gravity
- Quadratic curvature theories formulated as Covariant Canonical Gauge theories of Gravity
- Dark energy and inflation invoked in CCGG by locally contorted space-time
- Asymmetry in the reconstructed deceleration parameter
- Canonical transformation path to gauge theories of gravity II --- Spacetime coupling of spin-0 and spin-1 particle fields
- Covariant Canonical Gauge Gravitation and Cosmology
- Energy transfer from space-time into matter and a bouncing inflation from Covariant Canonical Gauge theory of Gravity