2026-06-01T02:03:04Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/60752023-08-27T13:33:39Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Ayuso, Ismael
author
Ruiz Cembranos, José Alberto
2023-06-16T15:16:08Z
2023-06-16T15:16:08Z
2020-02-05
2470-0010
10.1103/PhysRevD.101.044007
https://hdl.handle.net/20.500.14352/6075
http://dx.doi.org/10.1103/PhysRevD.101.044007
https://journals.aps.org/
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.
eng
Nonminimal scalar-tensor theories
journal article
URL
https://docta.ucm.es/bitstreams/2c939c07-8706-4b51-8768-09ee5ab16dc5/download
File
MD5
fee47d9262e45aa399fa5e55454c00cb
234116
application/pdf
CembranosJAR78libre.pdf