Raiders of the lost spacetime
History and Philosophy of Physics
2017-05-23 v1 General Relativity and Quantum Cosmology
Abstract
Spacetime as we know and love it is lost in most approaches to quantum gravity. For many of these approaches, as inchoate and incomplete as they may be, one of the main challenges is to relate what they take to be the fundamental non-spatiotemporal structure of the world back to the classical spacetime of GR. The present essay investigates how spacetime is lost and how it may be regained in one major approach to quantum gravity, loop quantum gravity.
Keywords
Cite
@article{arxiv.1405.5552,
title = {Raiders of the lost spacetime},
author = {Christian Wuthrich},
journal= {arXiv preprint arXiv:1405.5552},
year = {2017}
}
Comments
33 pages, 3 figures. Forthcoming in Dennis Lehmkuhl (ed.), Towards a Theory of Spacetime Theories, Birkh\"auser