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dc.contributor | Escuela de Ingenierias Industrial, Informática y Aeroespacial | es_ES |
dc.contributor.author | Bettoni, Dario | |
dc.contributor.author | Liberati, Stefano | |
dc.contributor.other | Didactica de la Matematica | es_ES |
dc.date | 2013-10-14 | |
dc.date.accessioned | 2024-02-06T12:03:10Z | |
dc.date.available | 2024-02-06T12:03:10Z | |
dc.identifier.citation | Bettoni, D., & Liberati, S. (2013). Disformal invariance of second order scalar-tensor theories: Framing the Horndeski action. Physical Review D, 88(8), 084020. | es_ES |
dc.identifier.issn | 1550-7998 | |
dc.identifier.uri | https://hdl.handle.net/10612/18097 | |
dc.description.abstract | [EN] The Horndeski action is the most general one involving a metric and a scalar field that leads to second-order field equations in four dimensions. Being the natural extension of the well-known scalar-tensor theories, its structure and properties are worth analyzing along the experience accumulated in the latter context. Here, we argue that disformal transformations play, for the Horndeski theory, a similar role to that of conformal transformations for scalar-tensor theories a là Brans–Dicke. We identify the most general transformation preserving second-order field equations and discuss the issue of viable frames for this kind of theory, in particular, the possibility to cast the action in the so-called Einstein frame. Interestingly, we find that only for a subset of the Horndeski Lagrangian such a frame exists. Finally, we investigate the transformation properties of such frames under field redefinitions and frame transformations and their reciprocal relationship. | es_ES |
dc.language | eng | es_ES |
dc.publisher | American Physical Society | es_ES |
dc.subject | Física | es_ES |
dc.subject.other | Gravitación modificada | es_ES |
dc.subject.other | Gravitación | es_ES |
dc.subject.other | Horndeski theory | es_ES |
dc.subject.other | Scalar-tensor gravity | es_ES |
dc.title | Disformal invariance of second order scalar-tensor theories: Framing the Horndeski action | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.identifier.doi | 10.1103/PhysRevD.88.084020 | |
dc.description.peerreviewed | SI | es_ES |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.identifier.essn | 1550-2368 | |
dc.journal.title | Physical Review D | es_ES |
dc.volume.number | 88 | es_ES |
dc.issue.number | 8 | es_ES |
dc.type.hasVersion | info:eu-repo/semantics/acceptedVersion | es_ES |
dc.subject.unesco | 2101.05 Gravitación | es_ES |
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