Advances in Theoretical and Mathematical Physics

Volume 8 (2004)

Number 5

Parity Invariance For String In Twistor Space

Pages: 779 – 796



Witten Edward


Topological string theory with twistor space as the target makes visible some otherwise dificult to see properties of perturbative Yang-Mills theory. But left-right symmetry, which is obvious in the standard formalism, is highly unclear from this point of view. Here we prove that tree diagrams computed from connected D-instanton configurations are parity-symmetric. The main point in the proof also works for loop diagrams.

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