How the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.103504
Abstract: We investigate the gravitational property of the quantum vacuum by treating its large energy density predicted by quantum field theory seriously and assuming that it does gravitate to obey the equivalence principle of general relativity.… read more here.
Keywords: expansion; expansion universe; energy; accelerating expansion ... See more keywords
δ Gravity, δ Matter and the Accelerated Expansion of the Universe
Sign Up to like & getrecommendations! Published in 2019 at "Gravitation and Cosmology"
DOI: 10.1134/s0202289319030022
Abstract: Introducing an additional symmetry (δ symmetry) in the Einstein-Hilbert action, we obtain a gravitational field model (δ gravity) based on two symmetric tensors, gμv and gμv where an effective metric, given by gμv = gμv… read more here.
Keywords: gravity; expansion universe; cosmology; matter ... See more keywords