Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-12-18
Annals Phys. 305 (2003) 286-309
Physics
High Energy Physics
High Energy Physics - Theory
Tex file, uses harvmac, 30 pages with 4 figures. Reference added, typos and one formula corrected. Final version to appear in
Scientific paper
I study a relativistic open string coupling through its endpoints to a plane wave with arbitrary temporal profile. The string's transverse oscillations respond linearly to the external field. This makes it possible to solve the classical equations, and to calculate the quantum-mechanical S-matrix in closed form. I analyze the dynamics of the string as the characteristic frequency and duration of the pulse are continuously varied. I derive, in particular, the multipole expansion in the adiabatic limit of very long wavelengths, and discuss also more violent phenomena such as shock waves, cusps and null brane intersections. Apart from their relevance to the study of time-dependence in superstring theory, these results could have other applications, such as the teleportation of gravitational wave bursts by cosmic strings.
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