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Entropy of Near-Extremal Black p-branes

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arxiv hep-th/9604089 v4 pith:3S6CTUPS submitted 1996-04-16 hep-th

I.R. Klebanov , A.A. Tseytlin This is my paper · ORCID
classification hep-th
keywords entropydimensionsbranesnear-extremaloriginalsupersymmetriesworldbekenstein-hawking
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We carry out a thorough survey of entropy for a large class of $p$-branes in various dimensions. We find that the Bekenstein-Hawking entropy may be given a simple world volume interpretation only for the non-dilatonic $p$-branes, those with the dilaton constant throughout spacetime. The entropy of extremal non-dilatonic $p$-branes is non-vanishing only for the solutions preserving 1/8 of the original supersymmetries. Upon toroidal compactification these reduce to dyonic black holes in 4 and 5 dimensions. For the self-dual string in 6 dimensions, which preserves 1/4 of the original supersymmetries, the near-extremal entropy is found to agree with a world sheet calculation, in support of the existing literature. The remaining 3 interesting cases preserve 1/2 of the original supersymmetries. These are the self-dual 3-brane in 10 dimensions, and the 2- and 5-branes in 11 dimensions. For all of them the scaling of the near-extremal Bekenstein-Hawking entropy with the Hawking temperature is in agreement with a statistical description in terms of free massless fields on the world volume.

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Cited by 4 Pith papers

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  3. Classical Unattainability of Extremality in non-BPS D-brane Systems

    hep-th 2026-01 conditional novelty 6.0 of 10

    For a non-BPS four-charge D-brane system in N=8 string theory, the worldline potential has no classical zero-energy minimum, so extremality is unattainable; entropy is proposed as the logarithm of the number of isolat...

  4. Backtracking AdS flux vacua

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