scholarly journals Effects of dark energy perturbations on cosmological tests of general relativity

2013 ◽  
Vol 88 (10) ◽  
Author(s):  
Jason N. Dossett ◽  
Mustapha Ishak
Keyword(s):  
General Relativity ◽  
Dark Energy ◽  
Tests Of General Relativity ◽  
Cosmological Tests

Cosmological tests of General Relativity with tomographic surveys

2010 ◽  
Author(s):  
Alessandra Silvestri ◽  
Jean-Michel Alimi ◽  
André Fuözfa ◽  
◽  
◽  
...  
Keyword(s):  
General Relativity ◽  
Tests Of General Relativity ◽  
Cosmological Tests

scholarly journals Cosmological tests of general relativity: A principal component analysis

2012 ◽  
Vol 85 (4) ◽  
Author(s):  
Alireza Hojjati ◽  
Gong-Bo Zhao ◽  
Levon Pogosian ◽  
Alessandra Silvestri ◽  
Robert Crittenden ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
General Relativity ◽  
Principal Component ◽  
Component Analysis ◽  
Tests Of General Relativity ◽  
Cosmological Tests

Cosmological tests of general relativity

Nature ◽  
1977 ◽  
Vol 267 (5607) ◽  
pp. 128-130 ◽  
Author(s):  
P. HUT
Keyword(s):  
General Relativity ◽  
Tests Of General Relativity ◽  
Cosmological Tests

scholarly journals Cosmological Tests of General Relativity with Future Tomographic Surveys

2009 ◽  
Vol 103 (24) ◽  
Author(s):  
Gong-Bo Zhao ◽  
Levon Pogosian ◽  
Alessandra Silvestri ◽  
Joel Zylberberg
Keyword(s):  
General Relativity ◽  
Tests Of General Relativity ◽  
Cosmological Tests

BOUNDS ON f(G) GRAVITY FROM ENERGY CONDITIONS

2010 ◽  
Vol 25 (27) ◽  
pp. 2325-2332 ◽  
Author(s):  
PUXUN WU ◽  
HONGWEI YU
Keyword(s):  
General Relativity ◽  
Dark Energy ◽  
Energy Density ◽  
Modified Gravity ◽  
Energy Conditions ◽  
Model Parameters ◽  
Effective Energy ◽  
Raychaudhuri Equation ◽  
Accelerating Expansion

The f(G) gravity is a theory to modify the general relativity and it can explain the present cosmic accelerating expansion without the need of dark energy. In this paper the f(G) gravity is tested with the energy conditions. Using the Raychaudhuri equation along with the requirement that the gravity is attractive in the FRW background, we obtain the bounds on f(G) from the SEC and NEC. These bounds can also be found directly from the SEC and NEC within the general relativity context by the transformations: ρ → ρm + ρE and p → pm + pE, where ρE and pE are the effective energy density and pressure in the modified gravity. With these transformations, the constraints on f(G) from the WEC and DEC are obtained. Finally, we examine two concrete examples with WEC and obtain the allowed region of model parameters.

scholarly journals The confrontation between general relativity and experiment

2009 ◽  
Vol 5 (S261) ◽  
pp. 198-199
Author(s):  
Clifford M. Will
Keyword(s):  
General Relativity ◽  
Gravitational Wave ◽  
Equivalence Principle ◽  
Gamma Ray ◽  
Strong Field ◽  
Weak Field ◽  
X Ray ◽  
Spacetime Geometry ◽  
Tests Of General Relativity ◽  
Laser Interferometric

AbstractWe review the experimental evidence for Einstein's general relativity. A variety of high precision null experiments confirm the Einstein Equivalence Principle, which underlies the concept that gravitation is synonymous with spacetime geometry, and must be described by a metric theory. Solar system experiments that test the weak-field, post-Newtonian limit of metric theories strongly favor general relativity. Binary pulsars test gravitational-wave damping and aspects of strong-field general relativity. During the coming decades, tests of general relativity in new regimes may be possible. Laser interferometric gravitational-wave observatories on Earth and in space may provide new tests via precise measurements of the properties of gravitational waves. Future efforts using X-ray, infrared, gamma-ray and gravitational-wave astronomy may one day test general relativity in the strong-field regime near black holes and neutron stars.

Sign in / Sign up

Export Citation Format

Share Document