.png){kind=icon}
.png){kind=icon}
Return
Holomorphic couplings in non-perturbative string compactifications
.png){kind=icon}
OA
AI
DOI：10.1002/prop.201100075.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
In this review article(+) we present an analysis of several aspects of four-dimensional, non-perturbative N = 1 compactifications of string theory. Our study focuses on brane dynamics and their effective physics as encoded in the holomorphic couplings of the low-energy N = 1 effective action, most prominently the superpotential W. This article is divided into three parts. In part one we derive the effective action of a spacetime-filling D5-brane in generic Type IIB Calabi-Yau orientifold compactifications. In the second part we invoke tools from string dualities, namely from F-theory, heterotic/ F-theory duality and mirror symmetry, for a more elaborate study of the dynamics of (p, q) 7-branes and heterotic five-branes. In this context we perform exact computations of the complete perturbative effective superpotential, both due to branes and background fluxes. Finally, in the third part we present a novel geometric description of five-branes in Type IIB and heterotic M-theory Calabi-Yau compactifications via a non-Calabi-Yau threefold (Z) over cap (3), that is canonically constructed from the original five-brane and the Calabi-Yau threefold Z(3) via a blow-up. We use the blow-up threefold to derive open-closed Picard-Fuchs differential equations, that govern the complete effective brane and flux superpotential. In addition, we present first evidence to interpret (Z) over cap (3)as a flux compactification geometrically dual to the original five-brane by defining an SU(3)-structure on (Z) over cap (3), that is generated dynamically by the five-brane backreaction. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Keywords:
String theory
F-theory
D-branes
Journal
F
IF:
7.8
Papers:
2.0K
Citations:
3.6K