Title of article :
Supersymmetric black holes in N = 8 supergravity Original Research Article
Author/Authors :
Ramzi R. Khuri، نويسنده , , Tomas Ortin، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1996
Pages :
28
From page :
355
To page :
382
Abstract :
We study the embedding of extreme (multi-) dilaton black hole solutions for the values of the parameter a = √3, 1, 1/√3, 0 in N = 4 and N = 8 four-dimensional supergravity. For each black hole solution we find different embeddings in N = 4 supergravity which have different numbers of unbroken supersymmetries. When embedded in N = 8 supergravity, all different embeddings of the same solution have the same number of unbroken supersymmetries. Thus, there is a relation between the value of the parameter a and the number of unbroken supersymmetries in N = 8 supergravity, but not in N = 4, and the different embeddings must be related by dualities of the N = 8 theory which are not dualities of the N = 4 theory. The only exception in this scheme is a dyonic embedding of the a = 0 black-hole solution which seems to break all supersymmetries both in the N = 4 and in the N = 8 theories.
Journal title :
Nuclear Physics B
Serial Year :
1996
Journal title :
Nuclear Physics B
Record number :
877907
Link To Document :
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