Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-06-13
Nucl.Phys. B669 (2003) 207-232
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 26 pages,v3: typos corrected
Scientific paper
10.1016/j.nuclphysb.2003.07.016
We study the Dirac and the Laplacian operators on orientable Riemann surfaces of arbitrary genus g. In particular we compute their determinants with twisted boundary conditions along the b-cycles. All the ingredients of the final results (including the normalizations) are explicitly written in terms of the Schottky parametrization of the Riemann surface. By using the bosonization equivalence, we derive a multi-loop generalization of the well-known g=1 product formulae for the Theta-functions. We finally comment on the applications of these results to the perturbative theory of open charged strings.
Russo Rodolfo
Sciuto Stefano
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