26 citations · 27 across the 4 of their papers we have counts for
7 papers
If time had no beginning
Bruno Valeixo Bento, Stav Zalel
General Relativity traces the evolution of our Universe back to a Big Bang singularity. To probe physics before the singularity -- if indeed there is a ``before'' -- we must turn t…
If time had no beginning: growth dynamics for past-infinite causal sets
Bruno Valeixo Bento, Fay Dowker, Stav Zalel
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…
The structure of covtree: searching for manifestly covariant causal set dynamics
Stav Zalel
Covtree - a partial order on certain sets of finite, unlabeled causal sets - is a manifestly covariant framework for causal set dynamics. Here, as a first step in picking out a cla…
Dirac, Majorana, Weyl in 4d
L. Bonora, R. Soldati, S. Zalel
This is a review of some elementary properties of Dirac, Weyl and Majorana spinors in 4d. We focus in particular on the differences between massless Dirac and Majorana fermions, on…
A Criterion for Covariance in Complex Sequential Growth Models
Sumati Surya, Stav Zalel
The classical sequential growth model for causal sets provides a template for the dynamics in the deep quantum regime. This growth dynamics is intrinsically temporal and causal, wi…
A manifestly covariant framework for causal set dynamics
Fay Dowker, Nazireen Imambaccus, Amelia Owens +2
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, unla…