D-instantons on orbifolds and gauge/gravity correspondence

Details D-instantons on orbifolds and gauge/gravity correspondence D-instantons on orbifolds and gauge/gravity correspondence

2002-01-15

arxiv.org/abs/hep-th/0201102v2

Fortsch.Phys. 50 (2002) 992-998

Physics

High Energy Physics

High Energy Physics - Theory

minor changes, one reference added

Scientific paper

D-instantons are used to probe the near-horizon geometry of D3-branes systems on orbifold spaces. For fractional D3-branes, D-instanton calculus correctly reproduces the gauge beta-function and U(1)_R anomaly of the corresponding N=2 non-conformal Super Yang-Mills theories. For D3-branes wrapping the orbifold singularity, D-instantons can be identified with gauge instantons on ALE space, providing evidence of AdS/CFT duality for gauge theories on curved spaces.

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