The Goldstone theorem in non-linear electrodynamics

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dc.contributor.authorEscobar, C. A.
dc.contributor.authorUrrutia, L. F.
dc.date.accessioned2025-01-23T21:44:39Z
dc.date.available2025-01-23T21:44:39Z
dc.date.issued2014
dc.description.abstractWe construct a non-linear electrodynamics arising from the spontaneous Lorentz symmetry breaking triggered by a non-zero vacuum expectation value of the electromagnetic field strength, instead of the electromagnetic potential. The expansion of the corresponding action in terms of the physical photon excitations is naturally written in terms of generalized permeabilities, in a manner similar to when the polarization is expanded in terms of the susceptibilities when studying non-linear effects in standard optics. The new version of the Goldstone theorem is investigated and implies that the lowest-order permeability, been the analogous of the mass matrix in the standard case, has zero modes. These are interpreted as the corresponding Goldstone modes of the model and they are explicitly constructed for one of the two choices of vacua that the theory admits. Further iterations of the method employed to obtain such theorem yield relationships among the generalized permeabilities. Some preliminary results regarding the splitting of the two degrees of freedom of the model into Goldstone and non-Goldstone modes are presented. Copyright (C) EPLA, 2014
dc.fuente.origenWOS
dc.identifier.doi10.1209/0295-5075/106/31002
dc.identifier.eissn1286-4854
dc.identifier.issn0295-5075
dc.identifier.urihttps://doi.org/10.1209/0295-5075/106/31002
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101697
dc.identifier.wosidWOS:000336898900006
dc.issue.numero3
dc.language.isoen
dc.revistaEpl
dc.rightsacceso restringido
dc.titleThe Goldstone theorem in non-linear electrodynamics
dc.typeartículo
dc.volumen106
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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