Massless radiation from Strings: quantum spectrum average statistics and cusp-kink configurations

Abstract

We derive general formulae for computing the average spectrum for Bosonic or Fermionic massless emission from generic or particular sets of closed superstring quantum states, among the many occurring at a given large value of the number operator. In particular we look for states that can produce a Bosonic spectrum resembling the classical spectrum expected for peculiar cusp-like or kink-like classical configurations, and we perform a statistical counting of their average number. The results can be relevant in the framework of possible observations of the radiation emitted by cosmic strings.

13 pages, 4 figures, improved explanations, an appendix added on rotating folded string

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• Gravitational wave bursts from cusps and kinks on cosmic strings
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Cited by in corpus (8)

• Chaotic scattering of highly excited strings
• String Vertex Operators and Cosmic Strings
• Covariant Closed String Coherent States
• The chaotic emergence of thermalization in highly excited string decays
• Quantum effects in gravitational wave signals from cuspy superstrings
• Chaotic and Thermal Aspects in the Highly Excited String S-Matrix
• Duality and Decay of Macroscopic F-Strings
• Graviton production from D-string recombination and annihilation