Dielectric Fundamental Strings in Matrix String Theory

Details Dielectric Fundamental Strings in Matrix String Theory Dielectric Fundamental Strings in Matrix String Theory

2001-12-19

arxiv.org/abs/hep-th/0112180v3

Nucl.Phys. B634 (2002) 23-50

Physics

High Energy Physics

High Energy Physics - Theory

Plain LaTeX, 25 pages. Reference added. Version to appear to NPB

Scientific paper

10.1016/S0550-3213(02)00344-9

Matrix string theory is equivalent to type IIA superstring theory in the light-cone gauge, together with extra degrees of freedom representing D-brane states. It is therefore the appropriate framework in which to study systems of multiple fundamental strings expanding into higher-dimensional D-branes. Starting from Matrix theory in a weakly curved background, we construct the linear couplings of closed string fields to type IIA Matrix strings. As a check, we show that at weak coupling the resulting action reproduces light-cone gauge string theory in a weakly curved background. Further dualities give a type IIB Matrix string theory and a type IIA theory of Matrix strings with winding. We comment on the dielectric effect in each of these theories, giving some explicit solutions describing fundamental strings expanding into various Dp-branes.

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