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arXiv · hep-th/9406105

Massive String States as Extreme Black Holes

M. J. Duff·J. Rahmfeld
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Abstract

We consider the Schwarz-Sen spectrum of elementary electrically charged massive $N_R=1/2$ states of the four-dimensional heterotic string and show the maximum spin $1$ supermultiplets to correspond to extreme black hole solutions. The $N_L=1$ states and $N_L>1$ states (with vanishing left-moving internal momentum) admit a single scalar-Maxwell description with parameters $a=\sqrt 3$ or $a=1$, respectively. The corresponding solitonic magnetically charged spectrum conjectured by Schwarz and Sen on the basis of $S$-duality is also described by extreme black holes.

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M. J. Duff, J. Rahmfeld. 1994-12-12. Massive String States as Extreme Black Holes. https://doi.org/10.1016/0370-2693(94)01638-s

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