Exotic Branes from del Pezzo Surfaces [UNUSUAL TIME]

Abstract: We revisit a correspondence between toroidal compactifications of M-theory and del Pezzo surfaces, in which rational curves on the del Pezzo are related to 1/2-BPS branes of the corresponding compactification. We argue that curves of higher genus correspond to non-geometric backgrounds of the M-theory compactifications, which are related to exotic branes. In particular, the number of “special directions” of the exotic brane is equal to the genus of the corresponding curve. In addition to predicting three new non-geometric backgrounds, we discuss a relation between addition of curves in the del Pezzo and the brane polarization effect.

HEP - theory

Audience: researchers in the topic

Exceptional geometry seminar series

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