Title of article :
Asymptotic freedom and infrared behavior in the type 0 string approach to gauge theory Original Research Article
Author/Authors :
Igor R. Klebanov، نويسنده , , Arkady A. Tseytlin، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Pages :
14
From page :
143
To page :
156
Abstract :
In a recent paper we considered the type 0 string theories, obtained from the ten-dimensional closed NSR string by a GSO projection which excludes space-time fermions, and studied the low-energy dynamics of N coincident D-branes. This led us to conjecture that the four-dimensional SU(N) gauge theory coupled to six adjoint massless scalars is dual to a background of type 0 theory carrying N units of R-R 5-form flux and involving a tachyon condensate. The tachyon background leads to a “soft breaking” of conformal invariance, and we derived the corresponding renormalization group equation. Minahan has subsequently found its asymptotic solution for weak coupling and showed that the coupling exhibits logarithmic flow, as expected from the asymptotic freedom of the dual gauge theory. We study this solution in more detail and identify the effect of the 2-loop beta function. We also demonstrate the existence of a fized point at infinite coupling. Just like the fixed point at zero coupling, it is characterized by the AdS5 × S5 Einstein frame metric. We argue that there is a RG trajectory extending all the way from the zero coupling fixed point in the UV to the infinite coupling fixed point in the IR.
Journal title :
Nuclear Physics B
Serial Year :
1999
Journal title :
Nuclear Physics B
Record number :
881494
Link To Document :
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