On bouncing solutions in non-local gravity

被引:83
作者
Koshelev, A. S. [1 ,2 ]
Vernov, S. Yu [3 ,4 ,5 ]
机构
[1] Vrije Univ Brussel, B-1050 Brussels, Belgium
[2] Int Solvay Inst, B-1050 Brussels, Belgium
[3] Inst Ciencias Espacio ICE CSIC, E-08193 Barcelona, Spain
[4] Camp UAB, Fac Ciencies, IEEC, E-08193 Barcelona, Spain
[5] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia
关键词
MODELS;
D O I
10.1134/S106377961205019X
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
A non-local modified gravity model with an analytical function of the d'Alembert operator, is considered. This model has been recently proposed as a possible way of resolving the singularities problem in cosmology. We present exact bouncing solution, which is simpler compared to the already known one in this model, in the sense it does not require an additional matter to satisfy all gravitational equations.
引用
收藏
页码:666 / 668
页数:3
相关论文
共 23 条
[1]   Dynamics in nonlocal linear models in the Friedmann-Robertson-Walker metric [J].
Aref'eva, Irina Ya ;
Joukovskaya, Liudmila V. ;
Vernov, Sergey Yu .
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2008, 41 (30)
[2]  
Aref'eva IY, 2008, J HIGH ENERGY PHYS
[3]   Bouncing and accelerating solutions in nonlocal stringy models [J].
Aref'eva, Irina Ya ;
Joukovskaya, Liudmila V. ;
Vernov, Sergey Yu .
JOURNAL OF HIGH ENERGY PHYSICS, 2007, (07)
[4]  
AREFEVA IY, 2001, ARXIVHEPTH0111208V2
[5]   p-adic inflation [J].
Barnaby, Neil ;
Biswas, Tirthabir ;
Cline, James M. .
JOURNAL OF HIGH ENERGY PHYSICS, 2007, (04)
[6]   Bouncing universes in string-inspired gravity [J].
Biswas, T ;
Mazumdar, A ;
Siegel, W .
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2006, (03)
[7]   Towards Singularity- and Ghost-Free Theories of Gravity [J].
Biswas, Tirthabir ;
Gerwick, Erik ;
Koivisto, Tomi ;
Mazumdar, Anupam .
PHYSICAL REVIEW LETTERS, 2012, 108 (03)
[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]   Nonlocal gravity and the diffusion equation [J].
Calcagni, Gianluca ;
Nardelli, Giuseppe .
PHYSICAL REVIEW D, 2010, 82 (12)
[10]   Accelerating cosmologies from non-local higher-derivative gravity [J].
Capozziello, Salvatore ;
Elizalde, Emilio ;
Nojiri, Shin'ichi ;
Odintsov, Sergei D. .
PHYSICS LETTERS B, 2009, 671 (01) :193-198