Remarks on Quantum Aspects of 3D-Gravity in the First-Order Formalism

Details Remarks on Quantum Aspects of 3D-Gravity in the First-Order Formalism Remarks on Quantum Aspects of 3D-Gravity in the First-Order Formalism

2006-10-29

arxiv.org/abs/hep-th/0610305v1

Physics

High Energy Physics

High Energy Physics - Theory

17 pages

Scientific paper

In this paper, we reassess the issue of working out the propagators and identifying the spectrum of excitations associated to the vielbein and spin connection of (1+2)-D gravity in the presence of torsion by adopting the first-order formulation. A number of peculiarities is pointed out whenever the Chern-Simons term is taken into account along with the possible bilinear terms in the torsion tensor. We present a procedure to derive the full set of propagators, based on a set of spin-type operators, and we discuss under which conditions the pole of these tree-level 2-point functions correspond to physical excitations.

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