BPS Dynamics of Triple (p,q) String Junction

Abstract

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.

11 pages, Latex, 3 figures, typos corrected

References in corpus (9)

• Born-Infeld particles and Dirichlet p-branes
• Webs of (p,q) 5-branes, Five Dimensional Field Theories and Grid Diagrams
• Brane Dynamics From the Born-Infeld Action
• String Network
• BPS Nature of 3-String Junctions
• The Shape of Branes Pulled by Strings
• Brane-Waves and Strings
• On the M-Theory Approach to (Compactified) 5D Field Theories
• BPS Spectrum of 5 Dimensional Field Theories, (p,q) Webs and Curve Counting

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