12 citations · 50 across the 12 of their papers we have counts for
12 papers
Indications for Criticality at Zero Curvature in a 4d Regge Model of Euclidean Quantum Gravity
Wolfgang Beirl, Bernd A. Berg
We re-examine the approach to four-dimensional Euclidean quantum gravity based on the Regge calculus. A cut-off on the link lengths is introduced and consequently the gravitational…
A Regularization of Quantum Gravity
Wolfgang Beirl, Bernd A. Berg
We re-examine results of the Liouville theory and provide arguments that a {\it negative} bare cosmological constant is essential to define two-dimensional quantum gravity. From th…
2D Lorentzian Gravity as 2D Euclidean Gravity with Ising Spins
W. Beirl, D. A. Johnston
We suggest a generalization of the dynamical triangulation approach to quantum gravity with both timelike and spacelike edges, which can serve as a toy model for quantum gravity in…
The phase structure of pure Regge gravity
W. Beirl, A. Hauke, P. Homolka +4
We examine the phase structure of pure Regge gravity in four dimensions and compare our Monte Carlo results with -link Regge-theory as well as with another formulation of latt…
Is There Quantum Gravity in Two Dimensions?
Wolfgang Beirl, Bernd A. Berg
A hybrid model which allows to interpolate between the (original) Regge approach and dynamical triangulations is introduced. The gained flexibility in the measure is exploited to s…
SU(2) potentials in quantum gravity
W. Beirl, B. A. Berg, B. Krishnan +2
We present investigations of the potential between static charges from a simulation of quantum gravity coupled to an SU(2) gauge field on and simpli…