Cosmology of f (R,□R) gravity

被引：22

作者：

Carloni, Sante ^{[1
]}

Rosa, Joao Luis ^{[1
]}

Lemos, Jose P. S. ^{[1
]}

机构：

[1] UL, IST, Ctr Astrofis & Gravitacao CENTRA, Ave Rovisco Pais 1, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW D | 2019年 / 99卷 / 10期

关键词：

6TH-ORDER GRAVITY; DYNAMICS;

D O I：

10.1103/PhysRevD.99.104001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using dynamical system analysis, we explore the cosmology of theories of order up to eighth order of the form f(R,square R). The phase space of these cosmologies reveals that higher-order terms can have a dramatic influence on the evolution of the cosmology, avoiding the onset of finite time singularities. We also confirm and extend some of results which were obtained in the past for this class of theories.

引用

页数：21

共 42 条

[1] Cosmological dynamics of 'exponential gravity' [J].

Abdelwahab, M. ;

Carloni, S. ;

Dunsby, P. K. S. .

CLASSICAL AND QUANTUM GRAVITY, 2008, 25 (13)

[2] On dynamical systems approaches and methods in f (R) cosmology [J].

Alho, Artur ;

Carloni, Sante ;

Uggla, Claes .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2016, (08)

[3] GENERALIZED 6TH-ORDER GRAVITY AND INFLATION [J].

AMENDOLA, L ;

MAYER, AB ;

CAPOZZIELLO, S ;

GOTTLOBER, S ;

MULLER, V ;

OCCHIONERO, F ;

SCHMIDT, HJ .

CLASSICAL AND QUANTUM GRAVITY, 1993, 10 (05) :L43-L47

[4]

[Anonymous], ARXIV08122211

[5] Dynamical systems applied to cosmology: Dark energy and modified gravity [J].

Bahamonde, Sebastian ;

Bohmer, Christian G. ;

Carloni, Sante ;

Copeland, Edmund J. ;

Fang, Wei ;

Tamanini, Nicola .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2018, 775 :1-122

[6] EFFECTS OF R3 AND R-CLASS-R TERMS ON R2-INFLATION [J].

BERKIN, AL ;

MAEDA, K .

PHYSICS LETTERS B, 1990, 245 (3-4) :348-354

[7]

Birrell N.D., 1984, Quantum fields in curved space

[8] Towards a resolution of the cosmological singularity in non-local higher derivative theories of gravity [J].

Biswas, Tirthabir ;

Koivisto, Tomi ;

Mazumdar, Anupam .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2010, (11)

[9] Dynamical system analysis of cosmologies with running cosmological constant from quantum Einstein gravity [J].

Bonanno, Alfio ;

Carloni, Sante .

NEW JOURNAL OF PHYSICS, 2012, 14

[10]

Buchbinder I., 1992, EFFECTIVE ACTION QUA

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