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7 papers · 1 filter
Gravitational Action Versus Entropy on Simplicial Lattices in Four Dimensions
W. Beirl, E. Gerstenmayer, H. Markum +1
We investigate quantum gravity on simplicial lattices using Regge calculus with special emphasize on the problem of the unbounded action. The role of the entropy for the path integ…
Canonical Quantization of Non-Einsteinian Gravity and the Problem of Time
Peter Schaller, Thomas Strobl
For a 1+1 dimensional theory of gravity with torsion different approaches to the formulation of a quantum theory are presented. They are shown to lead to the same finite dimensiona…
All Symmetries of Non-Einsteinian Gravity in
Thomas Strobl
The covariant form of the field equations for two--dimensional --gravity with torsion as well as its Hamiltonian formulation are shown to suggest the choice of the light--cone…
Novel Symmetry of Non-Einsteinian Gravity in Two Dimensions
H. Grosse, W. Kummer, P. Prešnajder +1
The integrability of -gravity with torsion in two dimensions is traced to an ultralocal dynamical symmetry of constraints and momenta in Hamiltonian phase space. It may be int…
No Mirror Symmetry in Landau-Ginzburg Spectra!
Maximilian Kreuzer, Harald Skarke
We use a recent classification of non-degenerate quasihomogeneous polynomials to construct all Landau-Ginzburg (LG) potentials for N=2 superconformal field theories with c=9 and ca…
Influence of the Measure on Simplicial Quantum Gravity in Four Dimensions
W. Beirl, E. Gerstenmayer, H. Markum
We investigate the influence of the measure in the path integral for Euclidean quantum gravity in four dimensions within the Regge calculus. The action is bounded without additiona…