Topological Open String Amplitudes On Orientifolds

Details Topological Open String Amplitudes On Orientifolds Topological Open String Amplitudes On Orientifolds

2004-11-24

arxiv.org/abs/hep-th/0411227v1

JHEP0502:002,2005

Physics

High Energy Physics

High Energy Physics - Theory

43 pages, 8 figures

Scientific paper

10.1088/1126-6708/2005/02/002

We study topological open string amplitudes on orientifolds without fixed planes. We determine the contributions of the untwisted and twisted sectors as well as the BPS structure of the amplitudes. We illustrate our general results in various examples involving D-branes in toric orientifolds. We perform the computations by using both the topological vertex and unoriented localization. We also present an application of our results to the BPS structure of the coloured Kauffman polynomial of knots.

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