If time had no beginning: growth dynamics for past-infinite causal sets
Author(s)
Bento, Bruno Valeixo
Dowker, Fay
Zalel, Stav
Type
Journal Article
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.
Date Issued
2022-02-17
Date Acceptance
2021-12-17
Citation
Classical and Quantum Gravity, 2022, 39 (4)
ISSN
0264-9381
Publisher
IOP Publishing
Journal / Book Title
Classical and Quantum Gravity
Volume
39
Issue
4
Copyright Statement
© 2022 The Author(s). Published by IOP Publishing Ltd
License URL
Sponsor
Science and Technology Facilities Council (STFC)
The Royal Society
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000746168000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
ST/P000762/1
APX\R1\180098
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Quantum Science & Technology
Physics, Multidisciplinary
Physics, Particles & Fields
Physics
quantum gravity
general covariance
time
Publication Status
Published
Article Number
ARTN 045002
Date Publish Online
2022-01-20