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Published June 2004 | Published
Journal Article Open

Noncritical superstrings in a Ramond-Ramond background

Abstract

We use the recently found matrix description of noncritical superstring theory of type-0A to compute tachyon scattering amplitudes in a background with a RR flux. We find that after the string coupling is multiplicatively renormalized, the amplitudes in any genus become polynomial in the RR flux. We propose that in the limit where both the string coupling and the RR flux go to infinity, the theory has a weakly-coupled description in terms of another superstring theory with a vanishingly small RR flux. This duality exchanges the inverse string coupling and the 0-brane charge. The dual superstring theory must have a peculiar property that its only field-theoretic degree of freedom is a massless RR scalar.

Additional Information

© Institute of Physics and IOP Publishing Limited 2004. Received 1 June 2004, accepted for publication 15 June 2004. Published 28 June 2004. I am grateful to Jaume Gomis for useful discussions. This work was supported in part by the DOE grant DE-FG03-92-ER40701.

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August 22, 2023
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