scholarly journals f ( T ) Non-linear Massive Gravity and the Cosmic Acceleration

2015 ◽  
Vol 63 (6) ◽  
pp. 701-708 ◽  
Author(s):  
You Wu ◽  
Zu-Cheng Chen ◽  
Jia-Xin Wang ◽  
Hao Wei
Keyword(s):  
Massive Gravity ◽  
Cosmic Acceleration ◽  
Non Linear

scholarly journals The Dynamical Origin of the Graviton Mass in the Non-Linear Theory of Massive Gravity

Universe ◽  
2019 ◽  
Vol 5 (7) ◽  
pp. 166
Author(s):  
Ivan Arraut
Keyword(s):  
Scalar Field ◽  
Effective Mass ◽  
Linear Theory ◽  
Local Time ◽  
Massive Gravity ◽  
Higgs Mechanism ◽  
Graviton Mass ◽  
Non Linear ◽  
Dynamical Origin

We compare the standard Higgs mechanism corresponding to the scalar field, with the dynamical origin of the graviton mass inside the scenario of the dRGT theory of massive gravity. We demonstrate that the effective mass perceived locally by different observers depends on how they define the local time with respect to the preferred notion of time defined by the Stückelberg function T 0 ( r , t ) .

scholarly journals Late-time cosmic acceleration: ABCD of dark energy and modified theories of gravity

2016 ◽  
Vol 25 (12) ◽  
pp. 1630031 ◽  
Author(s):  
M. Sami ◽  
R. Myrzakulov
Keyword(s):  
Dark Energy ◽  
Scalar Fields ◽  
Massive Gravity ◽  
Cosmic Acceleration ◽  
Modified Theories Of Gravity ◽  
Late Time ◽  
Cosmological Constant Problem ◽  
Chameleon Mechanism ◽  
Theories Of Gravity ◽  
Basic Ideas

We briefly review the problems and prospects of the standard lore of dark energy. We have shown that scalar fields, in principle, cannot address the cosmological constant problem. Indeed, a fundamental scalar field is faced with a similar problem dubbed naturalness. In order to keep the discussion pedagogical, aimed at a wider audience, we have avoided technical complications in several places and resorted to heuristic arguments based on physical perceptions. We presented underlying ideas of modified theories based upon chameleon mechanism and Vainshtein screening. We have given a lucid illustration of recently investigated ghost-free nonlinear massive gravity. Again, we have sacrificed rigor and confined to the basic ideas that led to the formulation of the theory. The review ends with a brief discussion on the difficulties of the theory applied to cosmology.

scholarly journals Non-linear massive gravity as a gravitational σ -model

2016 ◽  
Vol 115 (3) ◽  
pp. 31001 ◽  
Author(s):  
Ivan Arraut ◽  
Kaddour Chelabi
Keyword(s):  
Massive Gravity ◽  
Non Linear

scholarly journals New proposal for non-linear ghost-free massive F(R) gravity: Cosmic acceleration and Hamiltonian analysis

2013 ◽  
Vol 726 (4-5) ◽  
pp. 918-925 ◽  
Author(s):  
Josef Klusoň ◽  
Shinʼichi Nojiri ◽  
Sergei D. Odintsov
Keyword(s):  
Cosmic Acceleration ◽  
Non Linear ◽  
Hamiltonian Analysis

scholarly journals Non-linear dynamics of the minimal theory of massive gravity

2021 ◽  
Author(s):  
R. Hagala ◽  
A. De Felice ◽  
D. F. Mota ◽  
S. Mukohyama
Keyword(s):  
Massive Gravity ◽  
Linear Dynamics ◽  
Minimal Theory ◽  
Non Linear
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