A manifestly covariant framework for causal set dynamics
CLASSICAL AND QUANTUM GRAVITY(2020)
摘要
We propose a manifestly covariant framework for causal set dynamics. The framework is based on a structure, dubbed covtree, which is a partial order on certain sets of finite, unlabeled causal sets. We show that every infinite path in covtree corresponds to at least one infinite, unlabeled causal set. We show that transition probabilities for a classical random walk on covtree induce a classical measure on the sigma-algebra generated by the stem sets.
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关键词
causal sets,quantum gravity,general covariance
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