If time had no beginning: growth dynamics for past-infinite causal sets



Bento, Bruno Valeixo ORCID: 0000-0003-4703-5318, Dowker, Fay and Zalel, Stav
(2022) If time had no beginning: growth dynamics for past-infinite causal sets. CLASSICAL AND QUANTUM GRAVITY, 39 (4). 045002-045002.

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Abstract

We explore whether the growth dynamics paradigm of Causal Set Theory is compatible with past-infinite causal sets. We modify the Classical Sequential Growth dynamics of Rideout and Sorkin to accommodate growth "into the past" and discuss what form physical constraints such as causality could take in this new framework. We propose convex-suborders as the "observables" or "physical properties" in a theory in which causal sets can be past-infinite and use this proposal to construct a manifestly covariant framework for dynamical models of growth for past-infinite causal sets.

Item Type: Article
Additional Information: 50 pages, 12 figures
Uncontrolled Keywords: quantum gravity, general covariance, time
Divisions: Faculty of Science and Engineering > School of Physical Sciences
Depositing User: Symplectic Admin
Date Deposited: 12 May 2022 11:47
Last Modified: 18 Jan 2023 21:03
DOI: 10.1088/1361-6382/ac445f
Open Access URL: https://iopscience.iop.org/article/10.1088/1361-63...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3154661