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- Title
Fractional D-branes and their gauge duals.
- Authors
Bertolini, Matteo; Vecchia, Paolo Di; Marotta, Raffaele; Frau, Marialuisa; Lerda, Alberto; Pesando, Igor
- Abstract
We study the classical geometry associated to fractional D3-branes of type IIB string theory on ℝ4ℤ2 which provide the gravitational dual for 풩 = 2 super Yang-Mills theory in four dimensions. As one can expect from the lack of conformal invariance on the gauge theory side, the gravitational background displays a repulson-like singularity. It turns out however, that such singularity can be excised by an enhançon mechanism. The complete knowledge of the classical supergravity solution allows us to identify the coupling constant of the dual gauge theory in terms of the string parameters and to find a logarithmic running that is governed precisely by the β function of the 풩 = 2 super Yang-Mills theory.
- Publication
Journal of High Energy Physics, 2001, Vol 2001, Issue 2, p014
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1088/1126-6708/2001/02/014