1995/04/09 by I. Antoniadis, S. Ferrara, E. Gava +4 · 2 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #Compactification (mathematics) #Duality (order theory) #Gravitational singularity #Group (periodic table) #Heterotic string theory #Massless particle #Moduli #Moduli space #Quantum and Classical Electrodynamics #Superstring theory #hep-th
paper · pdf · doi:10.1016/0550-3213(95)00240-s
published as Nucl.Phys. B447 (1995) 35-61 · 39 pages, LaTeX, no figures; section 6 expanded to include explicit construction of the monodromy group in a (4,0) orbifold example
arxiv created 1995/04/09 · openalex publication_date 1995/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We discuss the prepotential describing the effective field theory of N=2 heterotic superstring models. At the one loop-level the prepotential develops logarithmic singularities due to the appearance of charged massless states at particular surfaces in the moduli space of vector multiplets. These singularities modify the classical duality symmetry group which now becomes a representation of the fundamental group of the moduli space minus the singular surfaces. For the simplest two-moduli case, this fundamental group turns out to be a certain braid group and we determine the resulting full duality transformations of the prepotential, which are exact in perturbation theory.