Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/12525
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dc.contributor.authorGibbons, G. W.cat
dc.contributor.authorGomis Torné, Joaquimcat
dc.contributor.authorPope, C. N.cat
dc.date.accessioned2010-05-06T12:43:23Z-
dc.date.available2010-05-06T12:43:23Z-
dc.date.issued2007cat
dc.identifier.issn0556-2821cat
dc.identifier.urihttp://hdl.handle.net/2445/12525-
dc.description.abstractWe ask whether Cohen and Glashow’s very special relativity model for Lorentz violation might be modified, perhaps by quantum corrections, possibly producing a curved space-time with a cosmological constant. We show that its symmetry group ISIM(2) does admit a 2-parameter family of continuous deformations, but none of these give rise to noncommutative translations analogous to those of the de Sitter deformation of the Poincaré group: space-time remains flat. Only a 1-parameter family DISIM b ( 2 ) of deformations of SIM(2) is physically acceptable. Since this could arise through quantum corrections, its implications for tests of Lorentz violations via the Cohen-Glashow proposal should be taken into account. The Lorentz-violating point-particle action invariant under DISIM b ( 2 ) is of Finsler type, for which the line element is homogeneous of degree 1 in displacements, but anisotropic. We derive DISIM b ( 2 ) -invariant wave equations for particles of spins 0, 1 2 , and 1. The experimental bound, | b | < 10 − 26 , raises the question “Why is the dimensionless constant b so small in very special relativity?”-
dc.format.extent4 p.ca
dc.format.mimetypeapplication/pdfeng
dc.language.isoengeng
dc.publisherThe American Physical Societyeng
dc.relation.isformatofReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.76.081701cat
dc.relation.ispartofPhysical Review D, 2007, vol. 76, núm. 8, p. 081701-1-081701-5cat
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevD.76.081701-
dc.rights(c) The American Physical Society, 2007eng
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)-
dc.subject.classificationRelativitat especial (Física)cat
dc.subject.classificationGeometria diferencialcat
dc.subject.otherSpecial relativity (Physics)eng
dc.subject.otherDifferential geometryeng
dc.titleGeneral very special relativity is Finsler geometryeng
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec558224cat
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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