Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-10-08
JHEP0812:047,2008
Physics
High Energy Physics
High Energy Physics - Theory
85 pages, 1 figure, 19 tables. In v2, references added; various corrections and extensive revisions and clarifications made in
Scientific paper
10.1088/1126-6708/2008/12/047
We establish a correspondence between certain Lie superalgebras with 16 fermionic generators, and half-BPS solutions to supergravities with 32 supersymmetries. Three cases are discussed. For Type IIB supergravity, we relate semi-simple Lie superalgebras H with 16 fermionic generators which are subalgebras of PSU(2,2|4), to families of half-BPS solutions which are invariant under H, and locally asymptotic to AdS_5 x S^5. Similarly, for M-theory, we relate semi-simple Lie superalgebras H with 16 fermionic generators which are subalgebras of OSp(8^*|4) or OSp(8|4,R) to families of half-BPS solutions which are invariant under H, and locally asymptotic to AdS_7 x S^4 or AdS_4 x S^7 respectively. Possible enhancements to more than 16 supersymmetries, such as 24, are also analyzed. The classification of semi-simple subalgebras of PSU(2,2|4), OSp(8^*|4), and OSp(8|4,R) derived in this paper, leads us to conjecture the existence of various new families of half-BPS solutions to Type IIB supergravity and M-theory.
D'Hoker Eric
Estes John
Gutperle Michael
Krym Darya
Sorba Paul
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