Excited cosmic strings with superconducting currents

Hartmann, Betti; Michel, Florent; Peter, Patrick

doi:10.1103/physrevd.96.123531

Excited cosmic strings with superconducting currents

Hartmann, Betti; Michel, Florent; Peter, Patrick

Authors

Betti Hartmann

Florent Michel

Patrick Peter

Abstract

We present a detailed analysis of excited cosmic string solutions that possess superconducting currents. These currents can be excited inside the string core, and—if the condensate is large enough—can lead to the excitations of the Higgs field. Next to the case with global unbroken symmetry, we discuss also the effects of the gauging of this symmetry and show that excited condensates persist when coupled to an electromagnetic field. The space-time of such strings is also constructed by solving the Einstein equations numerically and we show how the local scalar curvature is modified by the excitation. We consider the relevance of our results on the cosmic string network evolution as well as observations of primordial gravitational waves and cosmic rays.

Citation

Hartmann, B., Michel, F., & Peter, P. (2017). Excited cosmic strings with superconducting currents. Physical Review D, 96(12), Article 123531. https://doi.org/10.1103/physrevd.96.123531

Journal Article Type	Article
Acceptance Date	Oct 18, 2017
Online Publication Date	Dec 26, 2017
Publication Date	Dec 26, 2017
Deposit Date	Jan 11, 2018
Publicly Available Date	Jan 11, 2018
Journal	Physical Review D
Print ISSN	1550-7998
Electronic ISSN	1550-2368
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	96
Issue	12
Article Number	123531
DOI	https://doi.org/10.1103/physrevd.96.123531

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Reprinted with permission from the American Physical Society: Hartmann, Betti, Michel, Florent & Peter, Patrick (2017). Excited cosmic strings with superconducting currents. Physical Review D 96(12): 123531 © 2017 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society.