118 citations · 588 across the 82 of their papers we have counts for
7 papers · 1 filter
Quantum gravity and spin systems
W. Beirl, P. Homolka, B. Krishnan +2
A new method for nonperturbative investigations of quantum gravity is presented in which the simplicial path integral is approximated by the partition function of a spin system. Th…
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…
Topological charge density around static colour sources in lattice QCD with dynamical quarks
M. Faber, H. Markum, S. Olejnik +1
We update our numerical investigation of topological structures around static quarks in pure gauge QCD by results of the first runs including dynamical quarks. Simulations were per…
Flux tubes and topological charges in finite-temperature lattice QCD
M. Faber, H. Markum, S. Olejnik +1
Topological properties of the vacuum were investigated in finite-temperature lattice QCD without and with dynamical quarks using a local operator of topological charge density and…
Regge gravity on general triangulations
Wolfgang Beirl, Harald Markum, J"urgen Riedler
We investigate quantum gravity in four dimensions using the Regge approach on triangulations of the four-torus with general, non-regular incidence matrices. We find that the simpli…
Nonperturbative Studies of Quantum Gravity
J. Riedler
One of several possibilities to construct a quantum theory of gravity is employing the Feynman path integral. This approach is plagued by some problems: the integration measure is…