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In this thesis the first order formulation of generalized dilaton gravities in two dimensions coupled to a Dirac fermion is considered. After a Hamiltonian analysis of the gauge symmetries and constraints of the theory and fixing Eddington-Finkelstein gauge by use of the Batalin-Vilkovisky-Fradkin method, the system is quantized in the Feynman path integral approach. It turns out that the path integral over the dilaton gravity sector can be evaluated exactly, while in the matter sector perturbative methods are applied. The gravitationally induced four-fermi scattering vertices as well as asymptotic states are calculated, and -- as for dilaton gravities coupled to scalar fields -- a ``virtual black hole'' is found to form as an intermediary geometric state in scattering processes. The results are compared to the well-known scalar case and evidence for bosonization in this context is found.

Author

Meyer, Rene

Published

2006

Language

EN