Time evolution as refining, coarse graining and entangling
General Relativity and Quantum Cosmology
2014-12-16 v4 Strongly Correlated Electrons
High Energy Physics - Theory
Quantum Physics
Abstract
We argue that refining, coarse graining and entangling operators can be obtained from time evolution operators. This applies in particular to geometric theories, such as spin foams. We point out that this provides a construction principle for the physical vacuum in quantum gravity theories and more generally allows to construct a (cylindrically) consistent continuum limit of the theory.
Cite
@article{arxiv.1311.7565,
title = {Time evolution as refining, coarse graining and entangling},
author = {Bianca Dittrich and Sebastian Steinhaus},
journal= {arXiv preprint arXiv:1311.7565},
year = {2014}
}
Comments
35 pages, 8 figures; v2: explanations and references added, improved structure; v3 and v4: minor updates, accepted in New J. Phys