Massive String States as Extreme Black Holes

  title={Massive String States as Extreme Black Holes},
  author={Mildred Duff and J. Rahmfeld},
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 supermul-tiplets 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 = √ 3 or a = 1, respectively. The corresponding solitonic magnetically charged spectrum conjectured by Schwarz and Sen on… CONTINUE READING

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