Effective field theory from modified gravity with massive modes

被引：10

作者：

Capozziello, Salvatore ^{[1
,2
,3
]}

De Laurentis, Mariafelicia ^{[4
]}

Paolella, Mariacristina ^{[1
,2
]}

Ricciardi, Giulia ^{[1
,2
]}

机构：

[1] Univ Naples Federico II, Dipartimento Fis, Naples, Italy

[2] Compl Univ Monte S Angelo, Sez Napoli, Ist Nazl Fis Nucl, I-80126 Naples, Italy

[3] Ist Nazl Fis Nucl, Gran Sasso Sci Inst, I-67100 Laquila, Italy

[4] Tomsk State Pedag Univ, Dept Theoret Phys, Tomsk 634041, Russia

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2015年 / 12卷 / 01期

关键词：

Modified gravity; effective field theories; massive gravitons; EXTENDED THEORIES;

D O I：

10.1142/S0219887815500048

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：11

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