19 citations · 67 across the 8 of their papers we have counts for
7 papers · 1 filter
Cosmic coincidences and relic neutrinos
R. Horvat
A simple phenomenological description for the energy transfer between a variable cosmological constant (CC) and a gas of relic neutrinos in an expanding universe can account for a…
Dynamical dark energy with a constant vacuum energy density
B. Guberina, R. Horvat, H. Nikolic
We present a holographic dark-energy model in which the Newton constant scales in such a way as to render the vacuum energy density a true constant. Nevertheless, the model…
Generalized holographic dark energy and the IR cutoff problem
B. Guberina, R. Horvat, H. Nikolic
We consider a holographic dark energy model, in which both the CC energy density rho_Lambda and the Newton constant G_N are varying quantities, to study the problem of setting an e…
Mass-Varying Neutrinos from a Variable Cosmological Constant
R. Horvat
We consider, in a completely model-independent way, the transfer of energy between the components of the dark energy sector consisting of the cosmological constant (CC) and that of…
Renormalization-group running cosmologies - a scale-setting procedure
A. Babic, B. Guberina, R. Horvat +1
For cosmologies including scale dependence of both the cosmological and the gravitational constant, an additional consistency condition dictated by the Bianchi identities emerges,…
Holography and Variable Cosmological Constant
R. Horvat
An effective local quantum field theory with UV and IR cutoffs correlated in accordance with holographic entropy bounds is capable of rendering the cosmological constant (CC) stabl…