Exact thresholds and instanton effects in D = 3 string theories
نویسندگان
چکیده
منابع مشابه
Exact thresholds and instanton effects in D = 3 string theories
Three-dimensional string theories with 16 supersymmetries are believed to possess a non-perturbative U-duality symmetry SO(8, 24, Z). By covariantizing the heterotic one-loop amplitude under U-duality, we propose an exact expression for the (∂φ) amplitude, that reproduces known perturbative limits. The weak-coupling expansion in either of the heterotic, type II or type I descriptions exhibits t...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2000
ISSN: 1029-8479
DOI: 10.1088/1126-6708/2000/07/003