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Multi-scalar p-brane solitons
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In a previous paper \cite{lp}, supersymmetric $p$-brane solutions involving one dilatonic scalar field in maximal supergravity theories were classified. Although these solutions involve a number of participating field strengths, they are all equal and thus they carry equal electric or magnetic charges. In this paper, we generalise all these solutions to multi-scalar solutions in which the charges become independent free parameters. The mass per unit $p$-volume is equal to the sum of these Page charges. We find that for generic values of the Page charges, they preserve the same fraction of the supersymmetry as in their single-scalar limits. However, for special values of the Page charges, the supersymmetry can be enhanced.
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Lifshitz-like black branes in arbitrary dimensions and the third law of thermodynamics
Exact black brane solutions with Lifshitz asymptotics are derived in arbitrary dimensions for two models, satisfying the third law for some parameters but exhibiting non-monotonic entropy-temperature relations for others.
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