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Bibliographic Details
Main Author: Carlip, Steven
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.14059
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Table of Contents:
  • Causal set theory offers a simple and elegant picture of discrete physics. But the vast majority of causal sets look nothing at all like continuum spacetimes, and must be excluded in some way to obtain a realistic theory. I describe recent results showing that almost all non-manifoldlike causal sets are, in fact, very strongly suppressed in the gravitational path integral. This does not quite demonstrate the emergence of a continuum -- we do not yet understand the remaining unsuppressed causal sets well enough -- but it is a significant step in that direction.