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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Excited cosmic strings with superconducting currents

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Autor(es):
Hartmann, Betti [1] ; Michel, Florent [2] ; Peter, Patrick [3]
Número total de Autores: 3
Afiliação do(s) autor(es):
[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
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Physical Review D; v. 96, n. 12 DEC 26 2017.
Citações Web of Science: 1
Resumo

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)

Processo FAPESP: 16/12605-2 - Instabilidade/Estabilidade e excitação de modos nos espaços-tempos (assintoticamente) anti-De Sitter com vista a correspondência AdS/CFT
Beneficiário:Betti Hartmann
Linha de fomento: Auxílio à Pesquisa - Regular