3 papers
hep-th2020
Tensor network renormalization with fusion charges: applications to 3d lattice gauge theory
William J. Cunningham, Bianca Dittrich, Sebastian Steinhaus
Tensor network methods are powerful and efficient tools to study the properties and dynamics of statistical and quantum systems, in particular in one and two dimensions. In recent…
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-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…