Zero modes on cosmic string loops

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We study the spectrum of fermionic modes on cosmic string loops. We find no fermionic zero modes nor massive bound states - this implies that vortons stabilized by fermionic currents do not exist. We have also studied kink-(anti)kink and vortex-(anti)vortex systems and find that all systems that have vanishing net topological charge do not support fermionic bound modes.
27 pages including 4 eps figures

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High Energy Physics - Theory, High Energy Physics - Phenomenology

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http://salesiana.dossiersoluciones.com/handle/123456789/129806

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.0416
 http://arxiv.org/abs/0706.0416

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arXiv