New phases of string theory and 6d RG fixed points via branes at orbifold singularities

1997/05/08 by Julie D. Blum, Kenneth Intriligator · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-th

paper · pdf · doi:10.1016/s0550-3213(97)00449-5

published as Nucl.Phys.B506:199-222,1997 · Harvmac, 28 pages, small typo corrected

arxiv created 1997/05/08 · openalex publication_date 1997/11/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss type II and type I branes at general ADE type orbifold singularities. We show that there are new phases of type I or heterotic string theory in six dimensions, involving extra tensor multiplets, which arise when small instantons sit on orbifold singularities. The theories with extra tensor multiplets are explicitly constructed via orientifolds. The world-volume theories in type IIB or type I five-branes at orbifold singularities lead to the existence of several infinite classes of six dimensional, interacting, renormalization group fixed point theories.

Citations

• Consistency conditions for branes at orbifold singularities
• Consistency Conditions for Orientifolds and D-Manifolds

Cited by

• Geometric Constructions of Nongeometric String Theories
• A new orientifold of C2/ZN and six-dimensional RG fixed points