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DBI analysis of generalised permutation branes

MPS-Authors
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Fredenhagen,  Stefan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Restuccia,  Cosimo
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

0908.1049v1.pdf
(Preprint), 204KB

JHP_01_2010_065.pdf
(Publisher version), 315KB

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Citation

Fredenhagen, S., & Restuccia, C. (2010). DBI analysis of generalised permutation branes. Journal of High Energy Physics, 2010(1): 065.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-60B7-4
Abstract
We investigate D-branes on the product GxG of two group manifolds described as Wess-Zumino-Novikov-Witten models. When the levels of the two groups coincide, it is well known that there exist permutation D-branes which are twisted by the automorphism exchanging the two factors. When the levels are different, the D-brane charge group demands that there should be generalisations of these permutation D-branes, and a geometric construction for them was proposed in hep-th/0509153. We give further evidence for this proposal by showing that the generalised permutation D-branes satisfy the Dirac-Born-Infeld equations of motion for arbitrary compact, simply connected and simple Lie groups G.