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27 April 2024 |
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String Imprints from a Pre-inflationary Era | | P.P. Avelino (CFP
; Astronomy Centre
; C.J.A.P. Martins (CAUP
; DAMTP
; IAP
; | | Date: |
14 Jun 2003 | | Journal: | Phys.Rev. D68 (2003) 107301 | | Subject: | astro-ph | | Affiliation: | CFP (Porto), Astronomy Centre (Sussex)) and C.J.A.P. Martins (CAUP (Porto), DAMTP (Cambridge), IAP (Paris) | | Abstract: | We derive the equations governing the dynamics of cosmic strings in a flat anisotropic universe of Bianchi type I and study the evolution of simple cosmic string loop solutions. We show that the anisotropy of the background can have a characteristic effect in the loop motion. We discuss some cosmological consequences of these findings and, by extrapolating our results to cosmic string networks, we comment on their ability to survive an inflationary epoch, and hence be a possible fossil remnant (still visible today) of an anisotropic phase in the very early universe. | | Source: | arXiv, astro-ph/0306294 | | Services: | Forum | Review | PDF | Favorites | |
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