86 citations · 494 across the 23 of their papers we have counts for
23 papers
IR Renormalisation of General Effective Actions and Hawking Flux in 2D Gravity Theories
D. Hofmann, W. Kummer
The infrared problem of the effective action in 2D is discussed in the framework of the Covariant Perturbation Theory. The divergences are regularised by a mass and the leading ter…
Physics-to-gauge conversion at black hole horizons
L. Bergamin, D. Grumiller, W. Kummer +1
Requiring the presence of a horizon imposes constraints on the physical phase space. After a careful analysis of dilaton gravity in 2D with boundaries (including the Schwarzschild…
Classical and Quantum Integrability of 2D Dilaton Gravities in Euclidean space
L. Bergamin, D. Grumiller, W. Kummer +1
Euclidean dilaton gravity in two dimensions is studied exploiting its representation as a complexified first order gravity model. All local classical solutions are obtained. A glob…
Two-Dimensional N=(2,2) Dilaton Supergravity from Graded Poisson-Sigma Models II: Analytic Solution and BPS States
L. Bergamin, W. Kummer
The integrability of N=(2,2) dilaton supergravity in two dimensions is studied by the use of the graded Poisson Sigma model approach. Though important differences compared to the p…
Linear derivative Cartan formulation of General Relativity
W. Kummer, H. Schuetz
Beside diffeomorphism invariance also manifest SO(3,1) local Lorentz invariance is implemented in a formulation of Einstein Gravity (with or without cosmological term) in terms of…
Effective Action and Hawking Flux from Covariant Perturbation Theory
D. Hofmann, W. Kummer
The computation of the radiation flux related to the Hawking temperature of a Schwarzschild Black Hole or another geometric background is still well-known to be fraught with a numb…