Kinks and small-scale structure on cosmic strings
| Autor: | Edmund J. Copeland, T. W. B. Kibble |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
High Energy Physics - Theory
Physics Nuclear and High Energy Physics Cosmology and Nongalactic Astrophysics (astro-ph.CO) Structure (category theory) FOS: Physical sciences String theory String (physics) Cosmology Cosmic string Correlation function (statistical mechanics) Theoretical physics High Energy Physics - Theory (hep-th) Tangent vector Distribution (differential geometry) Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physical Review D. 80 |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.80.123523 |
| Popis: | We discuss some hitherto puzzling features of the small-scale structure of cosmic strings. We argue that kinks play a key role, and that an important quantity to study is their sharpness distribution. In particular we suggest that for very small scales the two-point correlation function of the string tangent vector varies linearly with the separation and not as a fractional power, as proposed by Polchinski and Rocha [Phys. Rev. D 74, 083504 (2006)]. However, our results are consistent with theirs, because the range of scales to which this linearity applies shrinks as evolution proceeds. 10pages, revtex file, minor errors corrected |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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