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arXiv · 1104.4730

D-branes with Lorentzian signature in the Nappi-Witten model

R. Hernandez·G. Horcajada·F. Ruiz Ruiz
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Abstract

Lorentzian signature D-branes of all dimensions for the Nappi-Witten string are constructed. This is done by rewriting the gluing condition $J_+=FJ_-$ for the model chiral currents on the brane as a well posed first order differential problem and by solving it for Lie algebra isometries $F$ other than Lie algebra automorphisms. By construction, these D-branes are not twined conjugacy classes. Metrically degenerate D-branes are also obtained.

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R. Hernandez, G. Horcajada, F. Ruiz Ruiz. 2011-07-26. D-branes with Lorentzian signature in the Nappi-Witten model. https://doi.org/10.1007/jhep08(2011)047

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