High Energy Physics - Theory
[Submitted on 4 Oct 2001
(v1)
, last revised 18 Jun 2002 (this version, v2)]
Title: Dirichlet Branes on Orientifolds
Title: 狄利克雷膜在定向物上的情况
Abstract: We consider the classification of BPS and non-BPS D-branes in orientifold models. In particular we construct all stable BPS and non-BPS D-branes in the Gimon-Polchinski (GP) and Dabholkar-Park-Blum-Zaffaroni (DPBZ) orientifolds and determine their stability regions in moduli space as well as decay products. We find several kinds of integrally and torsion charged non-BPS D-branes. Certain of these are found to have projective representations of the orientifold $\times$ GSO group on the Chan-Paton factors. It is found that the GP orientifold is not described by equivariant orthogonal K-theory as may have been at first expected. Instead a twisted version of this K-theory is expected to be relevant.
Submission history
From: B. Stefanski jr. [view email][v1] Thu, 4 Oct 2001 09:34:32 UTC (34 KB)
[v2] Tue, 18 Jun 2002 09:16:58 UTC (35 KB)
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