Everything you always wanted to know about how causal set theory can help with open questions in cosmology, but were afraid to ask

Abstract

In this paper, we briefly survey open questions in cosmology that either have been or could potentially be addressed with the help of the causal set theory approach to quantum gravity. Our discussion includes topics ranging from dark matter and dark energy to primordial quantum fluctuations and horizon entropy. By putting together all in one place, these cosmologically relevant directions of work within causal set theory, we hope to impart a bird’s-eye view of this important research theme.