Fractional Strings in (p,q) 5-brane and Quiver Matrix String Theory

Details Fractional Strings in (p,q) 5-brane and Quiver Matrix String Theory Fractional Strings in (p,q) 5-brane and Quiver Matrix String Theory

1998-05-30

arxiv.org/abs/hep-th/9806001v1

JHEP 9808:002,1998

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, Latex

Scientific paper

10.1088/1126-6708/1998/08/002

We study the (p,q)5-brane dynamics from the viewpoint of Matrix string theory in the T-dualized ALE background. The most remarkable feature in the (p,q)5-brane is the existence of ``fractional string'', which appears as the instanton of 5-brane gauge theory. We approach to the physical aspects of fractional string by means of the two types of Matrix string probes: One of which is that given in hep-th/9710065. As the second probe we present the Matrix string theory describing the fractional string itself. We calculate the moduli space metrics in the respective cases and argue on the specific behaviors of fractional string. Especially, we show that the ``joining'' process of fractional strings can be realized as the transition from the Coulomb branch to the Higgs branch of the fractional string probe. In this argument, we emphasize the importance of some monodromies related with the theta-angle of the 5-brane gauge theory.

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