Branes and instantons at angles and the F-theory lift of O(1) instantons
Mirjam Cveti\v{c}, I\~naki Garc\'ia-Etxebarria, Robert Richter
TL;DR
This paper reviews the physics of angled D-branes and instantons, focusing on superpotential generation and the F-theory lift of O(1) instantons, highlighting both microscopic and macroscopic structures.
Contribution
It provides a detailed analysis of D-brane instantons at angles and discusses the F-theory lift of O(1) instantons, emphasizing supersymmetric instanton actions.
Findings
Superpotential generation depends on brane intersection angles.
Microscopic and macroscopic structures of instanton actions are clarified.
F-theory lift of O(1) instantons is discussed in detail.
Abstract
We discuss the physics of D-branes and D-brane instantons intersecting at angles, focusing on the (non)generation of a superpotential in the worldvolume theory of the branes. This is a short review of the results in arXiv:0905.1694, where we further emphasize both the macroscopic and microscopic structure of the manifestly supersymmetric instanton action. We also comment on the lift of O(1) instantons to F-theory.
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