Euclidian 4d quantum gravity with a non-trivial measure term
High Energy Physics - Lattice
2014-04-08 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We explore an extended coupling constant space of 4d regularized Euclidean quantum gravity, defined via the formalism of dynamical triangulations. We add a measure term which can also serve as a generalized higher curvature term and determine the phase diagram and the geometries dominating in the various regions. A first order phase transition line is observed, but no second order transition point is located. As a consequence we cannot attribute any continuum physics interpretation to the so-called crinkled phase of 4d dynamical triangulations.
Keywords
Cite
@article{arxiv.1307.2270,
title = {Euclidian 4d quantum gravity with a non-trivial measure term},
author = {J. Ambjorn and L. Glaser and A. Goerlich and J. Jurkiewicz},
journal= {arXiv preprint arXiv:1307.2270},
year = {2014}
}
Comments
24 pages and many figures. A few references added in v2