Spacetime Equals Entanglement
High Energy Physics - Theory
2016-11-11 v3 General Relativity and Quantum Cosmology
Abstract
We study the Hilbert space structure of classical spacetimes under the assumption that entanglement in holographic theories determines semiclassical geometry. We show that this simple assumption has profound implications; for example, a superposition of classical spacetimes may lead to another classical spacetime. Despite its unconventional nature, this picture admits the standard interpretation of superpositions of well-defined semiclassical spacetimes in the limit that the number of holographic degrees of freedom becomes large. We illustrate these ideas using a model for the holographic theory of cosmological spacetimes.
Cite
@article{arxiv.1607.02508,
title = {Spacetime Equals Entanglement},
author = {Yasunori Nomura and Nico Salzetta and Fabio Sanches and Sean J. Weinberg},
journal= {arXiv preprint arXiv:1607.02508},
year = {2016}
}
Comments
6 pages, 2 figures; v2: remarks on time evolution revised, v3: matches published version