Séminaire
| Résumé
: The
investigation of quantum correction to the
action of gravity is a complicated
problem, which is not completely resolved
yet. At the same time, a set of simple
assumptions such as covariance arguments,
enable us to write down a general form of
the quantum vacuum contributions up to a
single free coefficient. It is interesting
that the theory with such corrections is
capable to explain the rotation curves in
different types of galaxies without usual
LCDM part. This fact gives some serious
background to attempts to create an
alternative cosmic concordance model with
much smaller amount of WDM and dominating
cosmological constant. The study of
gravitational lensing in this model looks
very promising and interesting task. |
Bibliographie
- Main
publications
-
Davi C.
Rodrigues, Patricio S. Letelier,
Ilya L. Shapiro,
Galaxy
rotation curves from General Relativity with
quantum corrections.
JCAP
04 (2010) 020; DOI:
10.1088/1475-7516/2010/04/020; arXiv:
0911.4967.
- Javier
Grande, Joan Sola, Julio C. Fabris, Ilya
L. Shapiro,
Cosmic perturbations with running G and
Lambda. arXiv:1001.0259
Class. Quantum Grav. 27 (2010) 105004 (29pp).
- Julio
C. Fabris, Ilya L. Shapiro and Alan M.
Velasquez-Toribio,
Testing DM
warmness and quantity via the RRG model.
Phys.
Rev. D85 (2012) 023506;
arXiv:1105.2275
|
