Radiation from Accelerated Branes

Abstract

The radiation emitted by accelerated fundamental strings and D-branes is studied within the linear approximation to the supergravity limit of string theory. We show that scalar, gauge field and gravitational radiation is generically emitted by such branes. In the case where an external scalar field accelerates the branes, we derive a Larmor-type formula for the emitted scalar radiation and study the angular distribution of the outgoing energy flux. The classical radii of the branes are calculated by means of the corresponding Thompson scattering cross sections. Within the linear approximation, the interaction of the external scalar field with the velocity fields of the branes gives a contribution to the observed gauge field and gravitational radiation.

LaTeX, 25 pages, 2 figures; v2: added comments on the validity of the linear approximation, minor changes; version to appear in Physical Review D

References in corpus (2)

• Curvature terms in D-brane actions and their M-theory origin
• Holograms of Branes in the Bulk and Acceleration Terms in SYM Effective Action

Cited by in corpus (8)

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• Relativistic D-brane Scattering is Extremely Inelastic
• D-brane Bremsstrahlung
• D-brane Anti-brane Annihilation in an Expanding Universe
• Effective Potential for Revolving D-branes
• Dilaton and axion bremsstrahlung from collisions of cosmic (super)strings
• Electromagnetic Radiation in a Semi-Compact Space
• Form-field bremsstrahlung under collision of p-branes