Fractional D-branes and their gauge duals

By M. Bertolini, P. Vecchia, R. Marotta, M. Frau, A. Lerda, I. Pesando. 2000

145 citations recorded by the source corpus.

We study the classical geometry associated to fractional D3-branes of type IIB string theory on 42 which provide the gravitational dual for = 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 enhancon 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 = 2 super Yang-Mills theory.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/5f97c37e0730fc9a25118efef20e52939291fd90

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Citations in the corpus

N = 2 gauge theories on systems of fractional D3/D7-branes (2001, background): “This is to be contrasted with the solution of the pure fractional D3 branes [7, 8] where the twisted scalars had, instead, only terms at first order.”
D-brane charges in gravitational duals of 2 + 1 dimensional gauge theories and duality cascades (2009, background): “Generally, in backgrounds like this, there are tensionless D4-branes sitting at the enhancon in the background [17, 21, 24], although they did not appear explicitly in our solution.”
Remarks on the Warped Deformed Conifold (2001, background): “, (1) 1 For N = 2 supersymmetric gauge theories realized on fractional branes at orbifold singularities, the agreement of supergravity with field theory β-functions was demonstrated in [3, 4, 5].”