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dc.contributor.author Cirilo, Diego Julio
dc.date.available 2018-08-28T14:57:39Z
dc.date.issued 2017-04
dc.identifier.citation Cirilo, Diego Julio; Non-Riemannian generalizations of the Born-Infeld model and the meaning of the cosmological term; World Scientific; International Journal of Geometric Methods in Modern Physics; 14; 7; 4-2017; 1-25
dc.identifier.issn 0219-8878
dc.identifier.uri http://hdl.handle.net/11336/57329
dc.description.abstract Theory of gravitation based on a non-Riemannian geometry with dynamical torsion field is geometrically analyzed. To this end, the simplest Lagrangian density is introduced as a measure (reminiscent of a sigma model) and the dynamical equations are derived. Our goal is to rewrite this generalized affine action in a suitable form similar to the standard Born-Infeld (BI) Lagrangian. As soon as the functional action is rewritten in the BI form, the dynamical equations lead the trace-free GR-type equation and the field equations for the torsion, respectively: both equations emerge from the model in a sharp contrast with other attempts where additional assumptions were heuristically introduced. In this theoretical context, the Einstein κ, Newton G and the analog to the absolute b-field into the standard BI theory all arise from the same geometry through geometrical invariant quantities (as from the curvature R). They can be clearly identified and correctly interpreted both physical and geometrically. Interesting theoretical and physical aspects of the proposed theory are given as clear examples that show the viability of this approach to explain several problems of actual interest. Some of them are the dynamo effect and geometrical origin of α term, origin of primordial magnetic fields and the role of the torsion in the actual symmetry of the standard model. The relation with gauge theories, conserved currents, and other problems of astrophysical character is discussed with some detail.
dc.format application/pdf
dc.language.iso eng
dc.publisher World Scientific
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject ANOMALOUS MHD
dc.subject BORN-INFELD
dc.subject FUNDAMENTAL CONSTANTS
dc.subject MAGNETOGENESIS
dc.subject NON-RIEMANNIAN GEOMETRY
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.subject.classification Matemática Pura
dc.subject.classification Matemáticas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Non-Riemannian generalizations of the Born-Infeld model and the meaning of the cosmological term
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-08-28T13:34:18Z
dc.journal.volume 14
dc.journal.number 7
dc.journal.pagination 1-25
dc.journal.pais Singapur
dc.journal.ciudad Singapur
dc.description.fil Fil: Cirilo, Diego Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
dc.journal.title International Journal of Geometric Methods in Modern Physics
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1142/S0219887817501080
dc.conicet.fuente individual


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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)