101 citations · 369 across the 14 of their papers we have counts for
14 papers
Topology and Volume Effects in Quantum Gravity: Wheeler-DeWitt Theory
Johan Brannlund, Andrew DeBenedictis, Alison Lauman
We consider the quantization of space-times which can possess different topologies within a symmetry reduced version of Wheeler-DeWitt theory. The quantum states are defined from a…
Unimodular Gravity and Averaging
A. Coley, J. Brannlund, J. Latta
The question of the averaging of inhomogeneous spacetimes in cosmology is important for the correct interpretation of cosmological data. In this paper we suggest a conceptually sim…
A Note on the Symmetry Reduction of SU(2) on Horizons of Various Topologies
Andrew DeBenedictis, Steve Kloster, Johan Brannlund
It is known that the SU(2) degrees of freedom manifest in the description of the gravitational field in loop quantum gravity are generally reduced to U(1) degrees of freedom on an…
Averaging geometrical objects on a differentiable manifold
Johan Brannlund, Robert van den Hoogen, Alan Coley
We construct a framework within which a mathematically precise, fully covariant, and exact averaging procedure for tensor fields on a manifold can be formulated. In particular, we…
The Evolution of Black Holes in the Mini-Superspace Approximation of Loop Quantum Gravity
J. Brannlund, S. Kloster, A. DeBenedictis
Using the improved quantization technique to the mini-superspace approximation of loop quantum gravity, we study the evolution of black holes supported by a cosmological constant.…
Supersymmetry, holonomy and Kundt spacetimes
J Brannlund, A Coley, S Hervik
Supersymmetric solutions of supergravity theories, and consequently metrics with special holonomy, have played an important role in the development of string theory. We describe ho…