Brane Constructions, Fractional Branes and Anti-deSitter Domain Walls

TL;DR

This paper investigates exotic domain walls in type IIB string theory compactifications, exploring their connection to fractional branes, branes on intervals, and world-volume fluxes, with implications for supersymmetric gauge theories.

Contribution

It uncovers the relationship between exotic domain walls, fractional branes, and branes on intervals, using brane creation and flux analysis in AdS/CFT contexts.

Findings

Identifies the role of world-volume fluxes in domain wall configurations.

Draws parallels between AdS domain walls and N=1 supersymmetric MQCD.

Provides an alternative derivation of fractional branes and branes on intervals relationship.

Abstract

Compactifications of type IIB string theory on AdS5 x X5, where X5 is an Einstein space, can have one-fourth or half maximal supersymmetry for certain choices of X5. Some of these theories admit exotic domain walls arising from 5-branes wrapping 2-cycles in X5. We explore the relationship among these domain walls, fractional branes and branes stretched on intervals. World-volume fluxes in the wrapped branes play an important role in the analysis. We draw some parallels between the AdS background with exotic domain walls and N=1 supersymmetric MQCD, and identify other extended objects on the AdS side in the dual brane construction. The process of brane creation is used to give an alternate derivation of the relationship between fractional branes and branes on intervals.