Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-03-18
Int.J.Mod.Phys.A18:5647-5712,2003
Physics
High Energy Physics
High Energy Physics - Theory
LaTeX, 85 pages, 7 figures. Lectures given at SISSA/ISAS - Trieste, December 17-20 2002
Scientific paper
10.1142/S0217751X03016811
We review in a pedagogical manner some of the efforts aiming to extend the gauge/gravity correspondence to non-conformal supersymmetric gauge theories in four dimensions. After giving a general overview, we discuss in detail two specific examples: fractional D-branes on orbifolds and D-branes wrapped on supersymmetric cycles of Calabi-Yau spaces. We explore in particular which gauge theory information can be extracted from the corresponding supergravity solutions, and what the remaining open problems are. We also briefly explain the connection between these and other approaches, such as fractional branes on conifolds, branes suspended between branes, M5-branes on Riemann surfaces and M-theory on G2-holonomy manifolds, and discuss the role played by geometric transitions in all that.
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