96 citations · 428 across the 11 of their papers we have counts for
11 papers
Integrating Geometry in General 2D Dilaton Gravity with Matter
W. Kummer, H. Liebl, D. V. Vassilevich
General 2d dilaton theories, containing spherically symmetric gravity and hence the Schwarzschild black hole as a special case, are quantized by an exact path integral of their geo…
Comment on: ``Trace anomaly of dilaton coupled scalars in two dimensions''
W. Kummer, H. Liebl, D. V. Vassilevich
The trace anomaly for nonminimally coupled scalars in spherically reduced gravity obtained by Bousso and Hawking (hep-th/9705236) is incorrect. We explain the reasons for the devia…
Exact Path Integral Quantization of 2-D Dilaton Gravity
W. Kummer, H. Liebl, D. V. Vassilevich
We demonstrate that in the absence of `matter' fields to all orders of perturbation theory and for all 2D dilaton theories the quantum effective action coincides with the classical…
Generalized 2d-dilaton models, the true black hole and quantum integrability
M. O. Katanaev, W. Kummer, H. Liebl +1
All 1+1 dimensional dipheomorphism-invariant models can be viewed in a unified manner. This includes also general dilaton theories and especially spherically symmetric gravity (SSG…
Nonperturbative path integral of 2d dilaton gravity and two-loop effects from scalar matter
W. Kummer, H. Liebl, D. V. Vassilevich
Performing an nonperturbative path integral for the geometric part of a large class of 2d theories without kinetic term for the dilaton field, the quantum effects from scalar matte…
Hawking Radiation for Non-minimally Coupled Matter from Generalized 2D Black Hole Models
W. Kummer, H. Liebl, D. V. Vassilevich
It is well known that spherically symmetric reduction of General Relativity (SSG) leads to non-minimally coupled scalar matter. We generalize (and correct) recent results to Hawkin…