Strings on Orbifold Lines
arXiv:hep-th/0102095 · doi:10.1088/1126-6708/2001/05/019
Abstract
The orbifold lines IIA/I_8 and IIB/$I_8 (-1)^{F_L} possess BPS discrete torsion variants which carry fundamental string (NSNS) charge. We show that these variants are actually classified by an integral electric field F from the twisted RR sector, and compute their tension and NSNS charge as a function of F. The analysis employs equivariant K-theory and the string creation phenomenon. The K-theory results demonstrate the corrections to cohomology in the case of torsion; it is found that 8 units of F are invisible at transverse infinity for IIA, and correspondingly 16 units for IIB.
24 pages, 1 figure, LaTex. v2: published version
Cited by in corpus (15)
- Fractional Quantum Hall Effect via Holography: Chern-Simons, Edge States, and Hierarchy
- Quantum Hall Effect in AdS/CFT
- AC Transport at Holographic Quantum Hall Transitions
- Orientifold planes, affine algebras and magnetic monopoles
- NC Branes and Hierarchies in Quantum Hall Fluids
- The fate of the type I non-BPS D7-brane
- Ramond-Ramond Fields, Fractional Branes and Orbifold Differential K-Theory
- Mirror Symmetry on Kummer Type K3 Surfaces
- Jain States in a Matrix Theory of the Quantum Hall Effect
- E10 Orbifolds
- Discrete Torsion and Shift Orbifolds
- Branes and Fluxes in Orientifolds and K-theory
- Matrix Effective Theories of the Fractional Quantum Hall effect
- About the self-dual Chern-Simons system and Toda field theories on the noncommutative plane
- Return of the Torsion D-Branes