D-branes and dual gauge theories in type \(0\) strings
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Publication:1572043
DOI10.1016/S0550-3213(99)00041-3zbMATH Open0944.81035arXivhep-th/9811035OpenAlexW2092440278MaRDI QIDQ1572043
Author name not available (Why is that?)
Publication date: 12 July 2000
Published in: (Search for Journal in Brave)
Abstract: We consider the type 0 theories, obtained from the closed NSR string by a diagonal GSO projection which excludes space-time fermions, and study the D-branes into these theories. The low-energy dynamics of N coincident D-branes is governed by a U(N) gauge theory coupled to adjoint scalar fields. It is tempting to look for the type 0 string duals of such bosonic gauge theories in the background of the R-R charged p-brane classical solutions. This results in a picture analogous to the one recently proposed by Polyakov (hep-th/9809057). One of the serious problems that needs to be resolved is the closed string tachyon mode which couples to the D-branes and appears to cause an instability. We study the tachyon terms in the type 0 effective action and argue that the background R-R flux provides a positive shift of the (mass)^2 of the tachyon. Thus, for sufficiently large flux, the tachyonic instability may be cured, removing the most basic obstacle to constructing the type 0 duals of non-supersymmetric gauge theories. We further find that the tachyon acquires an expectation value in presence of the R-R flux. This effect is crucial for breaking the conformal invariance in the dual description of the 3+1 dimensional non-supersymmetric gauge theory.
Full work available at URL: https://arxiv.org/abs/hep-th/9811035
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