Reconstructing the distortion function for nonlocal cosmology

被引：108

作者：

Deffayet, C. ^{[1
]}

Woodard, R. P. ^{[2
]}

机构：

[1] Univ Paris 07, CNRS, CEA, UMR 7164,APC, F-75205 Paris 13, France

[2] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2009年 / 08期

关键词：

modified gravity; dark energy theory; EQUATION-OF-STATE; DARK ENERGY; BACK-REACTION; GRAVITY; SUPERNOVAE; LAMBDA; BRANE;

D O I：

10.1088/1475-7516/2009/08/023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the cosmology of modified gravity models in which Newton's constant is distorted by a function of the inverse d'Alembertian acting on the Ricci scalar. We derive a technique for choosing the distortion function so as to fit an arbitrary expansion history. This technique is applied numerically to the case of Lambda CDM cosmology, and the result agrees well with a simple hyperbolic tangent.

引用

页数：14

共 49 条

[31] Fading gravity and self-inflation [J].

Khoury, Justin .

PHYSICAL REVIEW D, 2007, 76 (12)

[32] Dynamics of nonlocal cosmology [J].

Koivisto, Tomi .

PHYSICAL REVIEW D, 2008, 77 (12)

[33] Newtonian limit of nonlocal cosmology [J].

Koivisto, Tomi S. .

PHYSICAL REVIEW D, 2008, 78 (12)

[34] FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION [J].

Komatsu, E. ;

Dunkley, J. ;

Nolta, M. R. ;

Bennett, C. L. ;

Gold, B. ;

Hinshaw, G. ;

Jarosik, N. ;

Larson, D. ;

Limon, M. ;

Page, L. ;

Spergel, D. N. ;

Halpern, M. ;

Hill, R. S. ;

Kogut, A. ;

Meyer, S. S. ;

Tucker, G. S. ;

Weiland, J. L. ;

Wollack, E. ;

Wright, E. L. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2009, 180 (02) :330-376

[35]

KOSHELEV NA, ARXIV08094927

[36] Ghosts in the self-accelerating brane universe [J].

Koyama, K .

PHYSICAL REVIEW D, 2005, 72 (12)

[37] Scalar-tensor-vector gravity theory [J].

Moffat, JW .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (03)

[38] Modified f(R) gravity unifying Rm inflation with the ΛCDM epoch [J].

Nojiri, Shin'ichi ;

Odintsov, Sergei D. .

PHYSICAL REVIEW D, 2008, 77 (02)

[39] Modified non-local-F (R) gravity as the key for the inflation and dark energy [J].

Nojiri, Shin'ichi ;

Odintsov, Sergei D. .

PHYSICS LETTERS B, 2008, 659 (04) :821-826

[40] Introduction to modified gravity and gravitational alternative for dark energy [J].

Nojiri, Shin'ichi ;

Odintsov, Sergei D. .

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, 2007, 4 (01) :115-145

← 1 2 3 4 5 →