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

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

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.

Citation

Rybak, I., Avgoustidis, A., & Martins, C. (2019). Dynamics of junctions and the multitension velocity-dependent one-scale model. Physical Review D, 99(6), Article 063516. https://doi.org/10.1103/physrevd.99.063516

• Journal Article Type: Article
• Acceptance Date: Feb 27, 2019
• Online Publication Date: Mar 15, 2019
• Publication Date: Mar 15, 2019
• Deposit Date: May 9, 2019
• Publicly Available Date: May 9, 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
• DOI: https://doi.org/10.1103/physrevd.99.063516
• Keywords: Physics and astronomy (miscellaneous)
• Public URL: https://nottingham-repository.worktribe.com/output/2034128
• Publisher URL: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.99.063516
• Contract Date: May 9, 2019