Asymptotic freedom and infrared behavior in the type 0 string approach to gauge theory

Igor R. Klebanov, Arkady A. Tseytlin

Research output: Contribution to journalArticlepeer-review

95 Scopus citations


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 fixed 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.

Original languageEnglish (US)
Pages (from-to)143-156
Number of pages14
JournalNuclear Physics B
Issue number1-2
StatePublished - May 10 1999

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


Dive into the research topics of 'Asymptotic freedom and infrared behavior in the type 0 string approach to gauge theory'. Together they form a unique fingerprint.

Cite this