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gr-qc2019
Dimensionally Restricted Causal Set Quantum Gravity: Examples in Two and Three Dimensions
William J. Cunningham, Sumati Surya
We study dimensionally restricted non-perturbative causal set quantum dynamics in and spacetime dimensions with non-trivial global spatial topology. The causal set sample s…
gr-qc2018
High Performance Algorithms for Quantum Gravity and Cosmology
William J. Cunningham
Large scale numerical experiments are commonplace today in theoretical physics. The high performance algorithms described herein are the most compact, efficient methods known for r…
gr-qc2017
Exact Geodesic Distances in FLRW Spacetimes
William J. Cunningham, David Rideout, James Halverson +1
Geodesics are used in a wide array of applications in cosmology and astrophysics. However, it is not a trivial task to efficiently calculate exact geodesic distances in an arbitrar…