14 citations · 36 across the 3 of their papers we have counts for
6 papers
One-Loop Effective Action for Euclidean Maxwell Theory on Manifolds with Boundary
Giampiero Esposito, Alexander Yu. Kamenshchik, Klaus Kirsten
This paper studies the one-loop effective action for Euclidean Maxwell theory about flat four-space bounded by one three-sphere, or two concentric three-spheres. The analysis relie…
Heat-kernel coefficients and functional determinants for higher-spin fields on the ball
Klaus Kirstem, Guido Cognola
The zeta function associated with higher-spin fields on the Euclidean -ball is investigated. The leading coefficients of the corresponding heat-kernel expansion are given explic…
Finite temperature effective potential on hyperbolic spacetimes
Guido Cognola, Klaus Kirsten, Luciano Vanzo +1
The finite temperature one-loop effective potential for a scalar field defined on an ultrastatic spacetime, whose spatial part is a compact hyperbolic manifold, is studied. Differe…
Free and self-interacting scalar fields in the presence of conical singularities
Guido Cognola, Klaus Kirsten, Luciano Vanzo
Free and self-interacting scalar fields in the presence of conical singularities are analized in some detail. The role of such a kind of singularities on free and vacuum energy and…
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…
One-loop effective potential on hyperbolic manifolds
Guido Cognola, Klaus Kirsten, Sergio Zerbini
The one-loop effective potential for a scalar field defined on an ultrastatic space-time whose spatial part is a compact hyperbolic manifold, is studied using zeta-function regular…