Towards coarse graining of discrete Lorentzian quantum gravity
General Relativity and Quantum Cosmology
2018-02-14 v1
Abstract
A first step towards implementing a notion of coarse graining in an intrinsically Lorentzian, discrete quantum- gravity approach, namely causal set quantum gravity is taken. It makes use of an abstract notion of scale, based on counting the number of discrete elements. To that end, the space of actions for causal set quantum gravity is written in a matrix-model-like language, and a flow equation for the effective action of the model is derived from the path integral.
Keywords
Cite
@article{arxiv.1709.10419,
title = {Towards coarse graining of discrete Lorentzian quantum gravity},
author = {Astrid Eichhorn},
journal= {arXiv preprint arXiv:1709.10419},
year = {2018}
}
Comments
11 pages