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Dynamics of junctions and the multitension velocity-dependent one-scale model

Rybak, I. Yu.; Avgoustidis, A.; Martins, C. J. A. P.

Authors

I. Yu. Rybak

A. Avgoustidis

C. J. A. P. Martins



Abstract

The dynamics of string junctions and their influence on the evolution of cosmic superstring networks are studied in full detail. We review kinematic constraints for colliding strings in a Friedmann-Lemaître-Robertson-Walker background and obtain the average distribution of possible string configurations after string collisions. The study of small-scale structure enables us to investigate the average growth/reduction rate of string junctions for a given cosmic string network. Incorporating the averaged junction dynamics into the velocity-dependent one-scale model for multitension string networks, we improve the semianalytic description and quantitative understanding of cosmic superstring network evolution.

Journal Article Type Article
Publication Date Mar 15, 2019
Journal Physical Review D
Print ISSN 2470-0010
Electronic ISSN 2470-0029
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 99
Issue 6
Article Number 063516
APA6 Citation Rybak, I., Avgoustidis, A., & Martins, C. (2019). Dynamics of junctions and the multitension velocity-dependent one-scale model. Physical Review D, 99(6), https://doi.org/10.1103/physrevd.99.063516
DOI https://doi.org/10.1103/physrevd.99.063516
Keywords Physics and astronomy (miscellaneous)
Publisher URL https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.063516

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