Título:
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Nonminimal scalar-tensor theories
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Autores:
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Ayuso, Ismael ;
Ruiz Cembranos, José Alberto
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Tipo de documento:
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texto impreso
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Editorial:
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Amer Physical Soc, 2020-02-05
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Dimensiones:
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application/pdf
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Nota general:
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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
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Tipo = Artículo
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Resumen:
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We compute the spectrum, mixing and interaction structure of scalar models with a general coupling to the scalar curvature. As it is well known the perturbative states of these theories are given by two massive spin-0 modes in addition to one massless spin-2 state. This latter mode can be identified with the standard graviton field. Indeed, it is possible to define an Einstein frame, where the dynamics of the massless spin-2 graviton is the one associated with the Einstein-Hilbert action. We explore systematically the interactions of all these degrees of freedom in the mentioned frame, since part of the coupling structure can be anticipated by geometrical arguments.
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En línea:
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https://eprints.ucm.es/59296/1/CembranosJAR78libre.pdf
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