26 citations · 143 across the 16 of their papers we have counts for
18 papers · 1 filter
Observables for cyclic causal set cosmologies
Fay Dowker, Stav Zalel
In causal set theory, cycles of cosmic expansion and collapse are modelled by causal sets with "breaks" and "posts" and a special role is played by cyclic dynamics in which the uni…
Causal Set Quantum Gravity and the Hard Problem of Consciousness
Fay Dowker
I develop Rafael D. Sorkin's proposal that a partially ordered process of the birth of spacetime atoms in causal set quantum gravity provides an objective physical correlate of our…
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…
Recovering General Relativity from a Planck scale discrete theory of quantum gravity
Fay Dowker, Jeremy Butterfield
An argument is presented that if a theory of quantum gravity is physically discrete at the Planck scale and the theory recovers General Relativity as an approximation, then, at the…
Boundary contributions in the causal set action
Fay Dowker
Evidence is provided for a conjecture that, in the continuum limit, the mean of the causal set action of a causal set sprinkled into a globally hyperbolic Lorentzian spacetime, M,…
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…