86 citations · 481 across the 18 of their papers we have counts for
18 papers
Quantum Corrections in Classicalon Theories
Petros Asimakis, Nikolaos Brouzakis, Aris Katsis +1
We use the heat kernel in order to compute the one-loop effective action on a classicalon background. We find that the UV divergences are suppressed relative to the predictions of…
Nonlinear evolution of density and flow perturbations on a Bjorken background
Nikolaos Brouzakis, Stefan Floerchinger, Nikolaos Tetradis +1
Density perturbations and their dynamic evolution from early to late times can be used for an improved understanding of interesting physical phenomena both in cosmology and in the…
Suppression of Quantum Corrections by Classical Backgrounds
Nikolaos Brouzakis, Nikolaos Tetradis
We use heat-kernel techniques in order to compute the one-loop effective action in the cubic Galileon theory for a background that realizes the Vainshtein mechanism. We find that t…
Quantum corrections in Galileon theories
N. Brouzakis, A. Codello, N. Tetradis +1
We calculate the one-loop quantum corrections in the cubic Galileon theory, using cutoff regularization. We confirm the expected form of the one-loop effective action and that the…
Unitarity and singular backgrounds
Nikos Brouzakis, Mariano Quiros
We compute the graviton Kaluza-Klein spectrum on a gravity-dilaton background with a naked singularity for all possible boundary conditions at the singularity which are consistent…
On the dynamics of classicalization
N. Brouzakis, J. Rizos, N. Tetradis
We discuss the mechanism through which classicalization may occur during the collapse of a spherical field configuration modelled as a wavepacket. We demonstrate that the phenomeno…