Nonperturbative path integral of 2d dilaton gravity and two-loop effects from scalar matter
High Energy Physics - Theory
2009-10-30 v1 General Relativity and Quantum Cosmology
Abstract
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 matter fields are treated as a perturbation. When integrated out to two-loops they yield a correction to the Polyakov term which is still exact in the geometric part. Interestingly enough the effective action only experiences a renormalization of the dilaton potential.
Keywords
Cite
@article{arxiv.hep-th/9707115,
title = {Nonperturbative path integral of 2d dilaton gravity and two-loop effects from scalar matter},
author = {W. Kummer and H. Liebl and D. V. Vassilevich},
journal= {arXiv preprint arXiv:hep-th/9707115},
year = {2009}
}
Comments
15 pages