Massive gravitational modes in effective field theories can be recovered by extending General Relativity and taking into account generic functions of the curvature invariants, not necessarily linear in the Ricci scalar R. In particular, adopting the minimal extension of f(R) gravity, an effective field theory with massive modes is straightforwardly recovered. This approach allows to evade shortcomings like ghosts and discontinuities if a suitable choice of expansion parameters is performed.

Effective field theory from modified gravity with massive modes / Capozziello, Salvatore; DE LAURENTIS, Mariafelicia; Mariacristina, Paolella; Ricciardi, Giulia. - In: INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS. - ISSN 0219-8878. - (2015). [10.1142/S0219887815500048]

Effective field theory from modified gravity with massive modes

CAPOZZIELLO, SALVATORE;Mariafelicia De Laurentis;RICCIARDI, GIULIA
2015

Abstract

Massive gravitational modes in effective field theories can be recovered by extending General Relativity and taking into account generic functions of the curvature invariants, not necessarily linear in the Ricci scalar R. In particular, adopting the minimal extension of f(R) gravity, an effective field theory with massive modes is straightforwardly recovered. This approach allows to evade shortcomings like ghosts and discontinuities if a suitable choice of expansion parameters is performed.
2015
Effective field theory from modified gravity with massive modes / Capozziello, Salvatore; DE LAURENTIS, Mariafelicia; Mariacristina, Paolella; Ricciardi, Giulia. - In: INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS. - ISSN 0219-8878. - (2015). [10.1142/S0219887815500048]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/588686
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