The Official String Theory Web Site:--> Theatre :--> String Colloquium 10
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Quantum corrections

. There is a well-defined recipe for adding quantum corrections perturbatively:
genus zero +genus 1+genus one
+genus three + ...
  • The nth order Feynman diagram is given by an integral over all genus n Riemann surfaces.
  • There are no ultraviolet divergences.

The Second Superstring Revolution // String Theory: a multihistory

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