Dipolar Dark Matter and Dark Energy
Cosmology and Nongalactic Astrophysics
2010-04-15 v2 General Relativity and Quantum Cosmology
Abstract
In previous work [L. Blanchet and A. Le Tiec, Phys. Rev. D 78, 024031 (2008)], a model of dark matter and dark energy based on the concept of gravitational polarization was investigated. This model was shown to recover the concordance cosmological scenario (Lambda-CDM) at cosmological scales, and the phenomenology of the modified Newtonian dynamics (MOND) at galactic scales. In this article we prove that the model can be formulated with a simple and physically meaningful matter action in general relativity. We also provide alternative derivations of the main results of the model, and some details on the variation of the action.
Cite
@article{arxiv.0901.3114,
title = {Dipolar Dark Matter and Dark Energy},
author = {Luc Blanchet and Alexandre Le Tiec},
journal= {arXiv preprint arXiv:0901.3114},
year = {2010}
}
Comments
11 pages, 2 figures; minor stylistic corrections, added references, added appendix; to appear in Phys. Rev. D