2 papers
gr-qc1999
Loop Quantum Gravity and the Meaning of Diffeomorphism Invariance
Marcus Gaul, Carlo Rovelli
This series of lectures gives a simple and self-contained introduction to the non-perturbative and background independent loop approach of canonical quantum gravity. The Hilbert sp…
hep-ph1998
Superstrings and dark matter
R. Dick, N. Eschrich, M. Gaul
We point out that the spectrum and interactions of light states of the heterotic string indicate a string scale close to the GUT scale, and a mass generating scale for the gravitat…