arXiv · gr-qc/0202097
General Covariance and the "Problem of Time" in a Discrete Cosmology
Abstract
Identifying an appropriate set of ``observables'' is a nontrivial task for most approaches to quantum gravity. We describe how it may be accomplished in the context of a recently proposed family of stochastic (but classical) dynamical laws for causal sets. The underlying idea should work equally well in the quantum case.
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Graham Brightwell, H. Fay Dowker, Joe Henson, Raquel S. Garcia, Rafael D. Sorkin. 2002-02-27. General Covariance and the "Problem of Time" in a Discrete Cosmology. https://arxiv.org/abs/gr-qc/0202097
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