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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Excited cosmic strings with superconducting currents

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Author(s):
Hartmann, Betti [1] ; Michel, Florent [2] ; Peter, Patrick [3]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, IFSC, CP 369, BR-13560970 Sao Carlos, SP - Brazil
[2] Univ Durham, Ctr Particle Theory, South Rd, Durham DH1 3LE - England
[3] UPMC Univ Paris 06, Inst Lagrange Paris, Inst Astrophys Paris GR&CO, Sorbonne Univ, UMR CNRS 7095, 98 Bis Blvd Arago, F-75014 Paris - France
Total Affiliations: 3
Document type: Journal article
Source: Physical Review D; v. 96, n. 12 DEC 26 2017.
Web of Science Citations: 1
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. (AU)

FAPESP's process: 16/12605-2 - (in)stability and excitation of modes in (asymptotically) anti-de Sitter space-times with view to the AdS/CFT correspondence
Grantee:Betti Hartmann
Support type: Regular Research Grants