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Half-BPS quotients in M-theory: ADE with a twist

De Medeiros, Paul F., Figueroa-O'Farrill, José, Gadhia, Sunil and Méndez-Escobar, Elena 2009. Half-BPS quotients in M-theory: ADE with a twist. Journal of High Energy Physics 2009 (10) , 038. 10.1088/1126-6708/2009/10/038

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We classify Freund-Rubin backgrounds of eleven-dimensional supergravity of the form AdS4 × X7 which are at least half BPS — equivalently, smooth quotients of the round 7-sphere by finite subgroups of SO(8) which admit an (N > 3)-dimensional subspace of Killing spinors. The classification is given in terms of pairs consisting of an ADE subgroup of SU(2) and an automorphism defining its embedding in SO(8). In particular we find novel half-BPS quotients associated with the subgroups of type Dn ≥ 6, E7 and E8 and their outer automorphisms.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Subjects: Q Science > QA Mathematics
Uncontrolled Keywords: M-Theory; p-branes
Publisher: IOP Science
ISSN: 1029-8479
Last Modified: 19 Mar 2016 23:07

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