Creation of Fundamental Strings by Crossing D-branes

Details Creation of Fundamental Strings by Crossing D-branes Creation of Fundamental Strings by Crossing D-branes

1997-05-13

arxiv.org/abs/hep-th/9705084v1

Phys.Rev.Lett. 79 (1997) 1984-1987

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, Latex

Scientific paper

10.1103/PhysRevLett.79.1984

We study the force balance between orthogonally positioned $p$-brane and $(8-p)$-brane. The force due to graviton and dilaton exchange is repulsive in this case. We identify the attractive force that balances this repulsion as due to one-half of a fundamental string stretched between the branes. As the $p$-brane passes through the $(8-p)$-brane, the connecting string changes direction, which may be interpreted as creation of one fundamental string. We show this directly from the structure of the Chern-Simons terms in the D-brane effective actions. We also discuss the effect of string creation on the 0-brane quantum mechanics in the type I' theory. The creation of a fundamental string is related by U-duality to the creation of a 3-brane discussed by Hanany and Witten. Both processes have a common origin in M-theory: as two M5-branes with one common direction cross, a M2-brane stretched between them is created.

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