Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1996-05-06
Nucl.Phys.B480:170-184,1996
Physics
High Energy Physics
High Energy Physics - Theory
17 pages, harvmac big
Scientific paper
10.1016/S0550-3213(96)00525-1
Many N=1 heterotic string compactifications exhibit physically mysterious singularities at codimension one in the moduli space of vacua. At these singularities, Yukawa couplings of charged fields develop poles as a function of the moduli. We explain these conformal field theory singularities, in a class of examples, as arising from non-perturbative gauge dynamics of non-perturbative gauge bosons (whose gauge coupling is the sigma model coupling) in the string theory.
Kachru Shamit
Seiberg Nathan
Silverstein Eva
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