D-branes and orientifolds of SO(3)

Abstract

We study branes and orientifolds on the group manifold of SO(3). We consider particularly the case of the equatorial branes, which are projective planes. We show that a Dirac-Born-Infeld action can be defined on them, although they are not orientable. We find that there are two orientifold projections with the same spacetime action, which differ by their action on equatorial branes.

11 pages, no figure, uses JHEP3.cls. V2 : minor corrections

References in corpus (6)

• Charged and Uncharged D-branes in various String Theories
• Flux stabilization in compact groups
• Geometry of WZW Orientifolds
• Open Strings in Simple Current Orbifolds
• On Orientifolds of WZW Models and their Relation to Geometry
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Cited by in corpus (7)

• D-brane charges on non-simply connected groups
• Liouville Field Theory on an Unoriented Surface
• Orientifolds of SU(2)/U(1) WZW Models
• D-branes in lens spaces
• Crosscap States for Orientifolds of Euclidean AdS_3
• Probing Orientifold Behavior Near NS Branes
• Quantum Matrix Models for Simple Current Orbifolds