163 citations · 304 across the 8 of their papers we have counts for
5 papers · 1 filter
Black hole and de Sitter solutions in a covariant renormalizable field theory of gravity
G. Cognola, E. Elizalde, L. Sebastiani +1
It is shown that Schwarzschild black hole and de Sitter solutions exist as exact solutions of a recently proposed relativistic covariant formulation of (power-counting) renormaliza…
One-loop Quantum Corrections to the Entropy for an Extremal Reissner-Nordström Black Hole
G. Cognola, L. Vanzo, S. Zerbini
The first quantum corrections to the entropy for an eternal 4-dimensional extremal Reissner-Nordström black hole is investigated at one-loop level, in the large mass limit of the b…
Interaction of Low - Energy Induced Gravity with Quantized Matter and Phase Transition Induced by Curvature
I. L. Shapiro, G. Cognola
At high energy scale the only quantum effect of any asymptotic free and asymptotically conformal invariant GUT is the trace anomaly of the energy-momentum tensor. Anomaly generates…
Effective Lagrangian for self-interacting scalar field theories in curved spacetime
Klaus Kirsten, Guido Cognola, Luciano Vanzo
We consider a self-interacting scalar field theory in a slowly varying gravitational background field. Using zeta-function regularization and heat-kernel techniques, we derive the…
Bose-Einstein condensation of scalar fields on hyperbolic manifolds
Guido Cognola, Luciano Vanzo
The problem of Bose-Einstein condensation for a relativistic ideal gas on a 3+1 dimensional manifold with a hyperbolic spatial part is analyzed in some detail. The critical tempera…