BPS Dynamics of Triple (p,q) String Junction

Details BPS Dynamics of Triple (p,q) String Junction BPS Dynamics of Triple (p,q) String Junction

1997-11-28

arxiv.org/abs/hep-th/9711202v4

Nucl.Phys. B526 (1998) 229-240

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, Latex, 3 figures, typos corrected

Scientific paper

10.1016/S0550-3213(98)00401-5

We study dynamics of triple junction of (p,q) strings in Type IIB string theory. We probe tension and mass density of (p,q) strings by studying harmonic fluctuations of the triple junction. We show that they agree perfectly with BPS formula provided suitable geometric interpretation of the junction is given. We provide a precise statement of BPS limit and force-balance property. At weak coupling and sufficiently dense limit, we argue that (p,q)-string embedded in string network is a `wiggly string', whose low-energy dynamics can be described via renormalization group evolved, smooth effective non-relativistic string. We also suggest the possibility that, upon Type IIB strings are promoted to M-theory membrane, there can exist `evanescent' bound-states at triple junction in the continuum.

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