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The Tachyon Potential in Open Neveu-Schwarz String Field Theory

Nathan Berkovits
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Abstract

A classical action for open superstring field theory has been proposed which does not suffer from contact term problems. After generalizing this action to include the non-GSO projected states of the Neveu-Schwarz string, the pure tachyon contribution to the tachyon potential is explicitly computed. The potential has a minimum of $V = -{1\over{32 g^2}}$ which is 60% of the predicted exact minimum of $V=-{1\over{2π^2 g^2}}$ from D-brane arguments.

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Nathan Berkovits. 2000-01-20. The Tachyon Potential in Open Neveu-Schwarz String Field Theory. https://doi.org/10.1088/1126-6708%2F2000%2F04%2F022

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