121 citations · 790 across the 18 of their papers we have counts for
18 papers
Renormalization group running cosmologies - from a scale setting to holographic dark energy
Branko Guberina
A scale-dependent cosmological constant and the Newton constant G emerge naturally in quantum field theory in a curved space-time background leading to renormalization group ru…
On Cosmological Implications of Gravitational Trace Anomaly
Neven Bilic, Branko Guberina, Raul Horvat +2
We study the infrared effective theory of gravity that stems from the quantum trace anomaly. Quantum fluctuations of the metric induce running of the cosmological constant and the…
Nonsaturated Holographic Dark Energy
B. Guberina, R. Horvat, H. Nikolic
It has been well established by today that the concept of holographic dark energy (HDE) does entail a serious candidate for the dark energy of the universe. Here we deal with model…
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…
Hint for Quintessence-like Scalars from Holographic Dark Energy
B. Guberina, R. Horvat, H. Stefancic
We use the generalized holographic dark energy model, in which both the cosmological constant (CC) and Newton's constant G_N are scale-dependent, to set constraints on the renormal…