Fermionic zero modes on a toroidal cosmic string

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dc.creatorGadde, Abhijit B.
dc.creatorYajnik, Urjit A.
dc.date2005-11-23
dc.date.accessioned2026-07-07T06:50:23Z
dc.date.available2026-07-07T06:50:23Z
dc.descriptionWe consider a toroidal configuration of cosmic string in 3+1 dimensions in an abelian Higgs model, a compactification of the Nielsen-Olesen string. This object is classically unstable. We explicitly compute the number of permitted zero modes for majorana fermions coupled to such a string. As in the case of indefinitely long strings, there are |n| zero modes for winding number sector n, and correspondingly, induced fermionic charge n/2 which canbe fractional. According to a previously proved result, this implies quantum mechanical stability for objects with odd winding number. The result is of significance to cosmology in classes of unified theories permitting such cosmic strings.
dc.identifierhttps://arxiv.org/abs/hep-th/0511235
dc.identifierhttp://arxiv.org/abs/hep-th/0511235
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/104651
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFermionic zero modes on a toroidal cosmic string
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