BPS States of Strings in 3-Form Flux

Abstract

We count the BPS states of strings in uniform 3-form fluxes, using supersymmetric quantum mechanics derived from the kappa-symmetric action for D-branes. This problem is relevant to the stringy physics of warped compactifications. We work on a type IIB T^6/Z_2 orientifold with imaginary self-dual, quantized, 3-form flux. Ignoring the orientifold projection, the number of short multiplets living on a single string is the square of the units of 3-form flux present on the torus; the orientifold removes roughly half of the multiplets. We review the well-known case of a superparticle on T^2 as an pedagogical example.

25 pp, 2 fig, v2. 27 pp, added subsections on singular pts in moduli space and bound states, also references

References in corpus (2)

• N=1 No-Scale Supergravity from IIB Orientifolds
• Twisting E8 Five-Branes

Cited by in corpus (2)

• Warped Strings: Self-dual Flux and Contemporary Compactifications
• Strings and D-branes in a supersymmetric magnetic flux background