Creation of Fundamental String in M(atrix) Theory

Details Creation of Fundamental String in M(atrix) Theory Creation of Fundamental String in M(atrix) Theory

1997-10-29

arxiv.org/abs/hep-th/9710218v4

Phys.Rev.D57:2040-2044,1998

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, Latex, minor corrections, version to appear in Phys. Rev. D (Rapid Communication)

Scientific paper

10.1103/PhysRevD.57.2040

The potential between two D4-branes at angles with partially unbroken supersymmetry is computed, and is used to discuss the creation of a fundamental string when two such D4-branes cross each other in M(atrix) theory. The effective Lagrangian is shown to be anomalous at 1-loop approximation, but it can be modified by bare Chern-Simons terms to preserve the invariance under the large gauge transformation. The resulting effective potential agrees with that obtained from the string calculations. The result shows that a fundamental string is created in order to cancel the repulsive force between two D4-branes at proper angles.

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