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Brane Transfer Operations and T-Duality of Non-BPS States

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arxiv hep-th/9902160 v2 pith:PCGC3YBF submitted 1999-02-24 hep-th

Oren Bergman , Eric G. Gimon , Petr Horava This is my paper · ORCID
classification hep-th
keywords k-theoryt-dualitytyped-branechargesd-branesgroupsnon-bps
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Using the relation between D-brane charges and K-theory, we study non-BPS D-branes and their behavior under T-duality. We point out that in general compactifications, D-brane charges are classified by relative K-theory groups. T-duality is found to act as a symmetry between the relative K-theory groups in Type II and Type I/IA theories. We also study Type \tilde\IA theory (which contains an O8^- plane and an O8^+ plane), using K-theory and T-duality to identify its stable D-branes. Comparison with string theory constructions reveals two interesting effects. One of them involves the transfer of branes between O-planes, while in the other, a D-brane charge which seems conserved near one O-plane in fact decays due to the presence of another type of O-plane.

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Cited by 2 Pith papers

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  2. Anomalies and D-branes in the Dabholkar-Park background

    hep-th 2024-12 conditional novelty 6.0 of 10

    Stable D-branes in the Dabholkar-Park background are derived from world-sheet anomalies with boundary Majorana fermions, matching the known relative KR-theory classification and explaining its 4-fold periodicity.

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