Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2000-02-07
Phys.Rev.D62:046005,2000
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 14 pages, minor corrections
Scientific paper
10.1103/PhysRevD.62.046005
In a recent paper, the complete (non-linear) Kaluza-Klein Ansatz for the consistent embedding of certain scalar plus gravity subsectors of gauged maximal supergravity in D=4, 5 and 7 was presented, in terms of sphere reductions from D=11 or type IIB supergravity. The scalar fields included in the truncations were the diagonal fields in the SL(N,R)/SO(N) scalar submanifolds of the full scalar sectors of the corresponding maximal supergravities, with N=8, 6 and 5. The embeddings were used for obtaining an interpretation of extremal D=4, 5 or 7 AdS domain walls in terms of distributed M-branes or D-branes in the higher dimensions. Although strong supporting evidence for the correctness of the embedding Ansatze was presented, a full proof of the consistency was not given. Here, we complete the proof, by showing explicitly that the full set of higher-dimensional equations of motion are satisfied if and only if the lower-dimensional fields satisfy the relevant scalar plus gravity equations.
Cvetic Mirjam
Lu Hai
Pope Christopher N.
Sadrzadeh A.
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