Perturbative Dynamics of Fractional Strings on Multiply Wound D-strings

Details Perturbative Dynamics of Fractional Strings on Multiply Wound D-strings Perturbative Dynamics of Fractional Strings on Multiply Wound D-strings

1996-10-31

arxiv.org/abs/hep-th/9610250v1

Int.J.Mod.Phys. A13 (1998) 903-914

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, LaTeX, 3 figures

Scientific paper

10.1142/S0217751X98000408

Fractional strings in the spectrum of states of open strings attached to a multiply wound D-brane is explained. We first describe the fractional string states in the low-energy effective theory where the topology of multiple winding is encoded in the gauge holonomy. The holonomy induces twisted boundary conditions responsible for the fractional moding of these states. We also describe fractional strings in world sheet formulation and compute simple scattering amplitudes for Hawking emission/absorption. Generalization to fractional DN-strings in a 1-brane 5-brane bound state is described. When a 1-brane and a 5-brane wraps $Q_1$ and $Q_5$ times respectively around a circle, the momentum of DN-strings is quantized in units of $2 \pi/L Q_1 Q_5$. These fractional states appear naturally in the perturbative spectrum of the theory.

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