Orientifolds, RR Torsion, and K-theory

Preprint

22 March 2001

preprint
Published by arXiv in arXiv

Abstract

We analyze the role of RR fluxes in orientifold backgrounds from the point of view of K-theory, and demonstrate some physical implications of describing these fluxes in K-theory rather than cohomology. In particular, we show that certain fractional shifts in RR charge quantization due to discrete RR fluxes are naturally explained in K-theory. We also show that some orientifold backgrounds, which are considered distinct in the cohomology classification, become equivalent in the K-theory description, while others become unphysical.

Keywords

ORIENTIFOLD BACKGROUNDS
CLASSIFICATION
QUANTIZATION
RR TORSION
COHOMOLOGY
RR FLUXES
K THEORY
TORSION

All Related Versions

Version 1, 2001-03-22, ArXiv
Version 2, 2001-04-03, ArXiv
Published version: Journal of High Energy Physics, 2001 (05), 047.

This publication has 0 references indexed in Scilit: