Effective field theory from modified gravity with massive modes
2014 ◽
Vol 12
(01)
◽
pp. 1550004
◽
Keyword(s):
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.
2016 ◽
Vol 31
(06)
◽
pp. 1630007
◽
2016 ◽
Vol 25
(05)
◽
pp. 1641007
◽
Keyword(s):
2005 ◽
Vol 14
(01)
◽
pp. 11-19
Keyword(s):
2014 ◽
Vol 26
◽
pp. 1460094
Keyword(s):
Keyword(s):
2011 ◽
Vol 26
(03n04)
◽
pp. 673-674
2017 ◽
Vol 2017
(12)
◽
pp. 014-014
◽
Keyword(s):