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Título:
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Stability in quadratic torsion theories
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Autores:
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Borislavov Vasilea, Teodor ;
Ruiz Cembranos, José Alberto ;
Gigante Valcarcel, Jorge ;
Martín Moruno, María del Prado
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Tipo de documento:
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texto impreso
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Editorial:
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Springer, 2017-11-10
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Dimensiones:
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application/pdf
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Nota general:
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cc_by
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física-Modelos matemáticos
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Tipo = Artículo
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Resumen:
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We revisit the definition and some of the characteristics of quadratic theories of gravity with torsion. We start from a Lagrangian density quadratic in the curvature and torsion tensors. By assuming that General Relativity should be recovered when the torsion vanishes and investigating the behaviour of the vector and pseudo-vector torsion fields in the weak-gravity regime, we present a set of necessary conditions for the stability of these theories. Moreover, we explicitly obtain the gravitational field equations using the Palatini variational principle with the metricity condition implemented via a Lagrange multiplier.
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En línea:
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https://eprints.ucm.es/48022/1/CembranosJAR63libre%2BCC.pdf
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