41 citations · 203 across the 40 of their papers we have counts for
4 papers · 1 filter
Smeared and unsmeared chiral vertex operators
Florin Constantinescu, G"unter Scharf
We prove unboundedness and boundedness of the unsmeared and smeared chiral vertex operators, respectively. We use elementary methods in bosonic Fock space, only. Possible applicati…
Microcanonical Quantum Statistics of Schwarzschild Black Holes
G"unter Scharf
It is shown that a quantized Schwarzschild black hole, if described by a square root energy spectrum with exponential multiplicity, can be treated as a microcanonical ensemble with…
Gauge Independence of the S-Matrix in the Causal Approach
Andreas Aste, Michael D"utsch, G"unter Scharf
The gauge dependence of the time-ordered products for Yang-Mills theories is analysed in perturbation theory by means of the causal method of Epstein and Glaser together with pertu…
On Gauge Invariance and Spontaneous Symmetry Breaking
Andreas Aste, Michael D"utsch, G"unter Scharf
We show how the widely used concept of spontaneous symmetry breaking can be explained in causal perturbation theory by introducing a perturbative version of quantum gauge invarianc…