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Vanishing vacuum amplitude of four-dimensional heterotic string theory compactified on N=2 superconformal field theory
Phys. Rev. D 39, 2322 – Published 15 April, 1989
DOI: https://doi.org/10.1103/PhysRevD.39.2322
Abstract
We study a (2,2) compactification of the heterotic string theory by forming a tensor product of nine copies of level-1, N=2 minimal superconformal series. We obtain a generalized Riemann θ identity and show that the one-loop vacuum amplitude vanishes, as is expected from N=1 space-time supersymmetry.
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