Quantum-Gravity Path-Integrals on Simplicial Lattices
High Energy Physics - Lattice
2009-10-22 v1
Abstract
Euclidean quantum-gravity path-integrals are investigated within Regge calculus by computer simulations. The domain of integration is restricted by introducing a lower limit for the fatness of each simplex. We use the standard hypercubic triangulation of the 4-torus and irregularly triangulated lattices obtained by inserting a small number of vertices using barycentric subdivision. For limited fatness we find an entropy dominated phase with small negative curvature both for the regular and the irregular triangulation.
Cite
@article{arxiv.hep-lat/9211023,
title = {Quantum-Gravity Path-Integrals on Simplicial Lattices},
author = {W. Beirl and E. Gerstenmayer and H. Markum},
journal= {arXiv preprint arXiv:hep-lat/9211023},
year = {2009}
}
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