Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-03-08
Class.Quant.Grav. 20 (2003) S347-S372
Physics
High Energy Physics
High Energy Physics - Theory
Lecture at Leuven workshop on ``The quantum structure of spacetime and the geometrical nature of fundamental interactions'' (S
Scientific paper
10.1088/0264-9381/20/12/302
A remarkable feature of D-branes is the appearance of a nonabelian gauge theory in the description of several (nearly) coincident branes. This nonabelian structure plays an important role in realizing various geometric effects with D-branes. In particular, the branes' transverse displacements are described by matrix-valued scalar fields and so noncommutative geometry naturally appears in this framework. I review the action governing this nonabelian theory, as well as various related physical phenomena such as the dielectric effect, giant gravitons and fuzzy funnels.
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