f(T) cosmology via Noether symmetry

被引:100
作者
Atazadeh, K. [1 ]
Darabi, F. [1 ,2 ]
机构
[1] Azarbaijan Univ Tarbiat Moallem, Dept Phys, Tabriz 53741161, Iran
[2] Res Inst Astron & Astrophys Maragha RIAAM, Maragha 55134441, Iran
来源
EUROPEAN PHYSICAL JOURNAL C | 2012年 / 72卷 / 05期
关键词
PROBE WMAP OBSERVATIONS; ANISOTROPY;
D O I
10.1140/epjc/s10052-012-2016-z
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We consider the Noether symmetry approach to find exact cosmological solutions in f(T)-gravity. Instead of taking into account phenomenological models, we apply the Noether symmetry to f(T) gravity. As a result, the presence of such symmetries selects viable models and allows one to solve the equations of motion. We show that the generated f(T) leads to a power law expansion for the cosmological scale factor.
引用
收藏
页码:1 / 7
页数:7
相关论文
共 31 条
[1]  
Aldrovandi R., INTRO TELEPARA UNPUB
[2]  
[Anonymous], ARXIV11062476
[3]   Dark torsion as the cosmic speed-up [J].
Bengochea, Gabriel R. ;
Ferraro, Rafael .
PHYSICAL REVIEW D, 2009, 79 (12)
[4]   The phase-space view of f(R) gravity [J].
C de Souza, Jose C. ;
Faraoni, Valerio .
CLASSICAL AND QUANTUM GRAVITY, 2007, 24 (14) :3637-3648
[5]   f(R) cosmology from Noether's symmetry [J].
Capozziello, S. ;
De Felice, A. .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2008, (08)
[6]   Cosmological perturbations in f(T) gravity [J].
Chen, Shih-Hung ;
Dent, James B. ;
Dutta, Sourish ;
Saridakis, Emmanuel N. .
PHYSICAL REVIEW D, 2011, 83 (02)
[7]   Dynamics of dark energy [J].
Copeland, Edmund J. ;
Sami, M. ;
Tsujikawa, Shinji .
INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2006, 15 (11) :1753-1935
[8]   f (R) Theories [J].
De Felice, Antonio ;
Tsujikawa, Shinji .
LIVING REVIEWS IN RELATIVITY, 2010, 13
[9]   SCALAR FIELDS AND ANISOTROPY IN COSMOLOGICAL MODELS [J].
DEMIANSKI, M ;
DERITIS, R ;
RUBANO, C ;
SCUDELLARO, P .
PHYSICAL REVIEW D, 1992, 46 (04) :1391-1398
[10]   f(T) gravity mimicking dynamical dark energy. Background and perturbation analysis [J].
Dent, James B. ;
Dutta, Sourish ;
Saridakis, Emmanuel N. .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (01)