Orientifolds of String Theory Melvin backgrounds - Archive ouverte HAL
Article Dans Une Revue Nuclear Physics B Année : 2002

Orientifolds of String Theory Melvin backgrounds

Résumé

We study the dynamics of type I strings on Melvin backgrounds, with a single or multiple twisted two-planes. We construct two inequivalent types of orientifold models that correspond to (non-compact) irrational versions of Scherk-Schwarz type breaking of supersymmetry. In the first class of vacua, D-branes and O-planes are no longer localized in space-time but are smeared along the compact Melvin coordinate with a characteristic profile. On the other hand, the second class of orientifolds involves O-planes and D-branes that are both rotated by an angle proportional to the twist. In case of ``multiple Melvin spaces\'\', some amount of supersymmetry is recovered if the planes are twisted appropriately and part of the original O-planes are transmuted into new ones. The corresponding boundary and crosscap states are determined.

Dates et versions

hal-00009480 , version 1 (04-10-2005)

Identifiants

Citer

C. Angelantonj, E. Dudas, J. Mourad. Orientifolds of String Theory Melvin backgrounds. Nuclear Physics B, 2002, 637, pp.59-91. ⟨hal-00009480⟩
71 Consultations
0 Téléchargements

Altmetric

Partager

More