Comments on Non-Supersymmetric Orientifolds at Strong Coupling

Abstract

We consider several properties of a set of anti-D$p$-branes in the presence of orientifold $p$-planes in type II theory. This system breaks all the supersymmetries of the theory, but is free of tachyons. In particular, we center on the case of a single anti-D$p$-brane stuck at a negatively charged orientifold $p$-plane, and study its strong coupling behaviour for $p=2,3,4$. Interestingly enough, as the coupling increases the system undergoes a phase transition where an additional antibrane is created. We conclude with some remarks on the limit of large number of antibranes on top of orientifold planes.

14 pages, Latex. Orientifold-antibrane short distance interaction corrected, references added

References in corpus (4)

• Brane Supersymmetry Breaking
• Standard-like Models with Broken Supersymmetry from Type I String Vacua
• Orientifold Points in M Theory
• Mass scales, supersymmetry breaking and open strings

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