NS Branes in Type I Theory

Abstract

We consider novel nonperturbative effects of type I theories compactified on singular ALE spaces obtained by adding NS branes. Such effects include a description of small $E_8$ instantons at singularities.

6 pages, Harvmac.tex, updated reference

References in corpus (4)

• New Phases of String Theory and 6d RG Fixed Points via Branes at Orbifold Singularities
• Point-like Instantons on K3 Orbifolds
• Consistency Conditions for Branes at Orbifold Singularities
• RG Fixed Points in Six Dimensions via Branes at Orbifold Singularities