2001/05/31 by Winfried Zimdahl, Diego Pavón, Luis P. Chimento · 1 citation
Physics and Astronomy · #astro-ph #gr-qc #hep-ph
paper · pdf · doi:10.1016/s0370-2693(01)01174-1
published as Phys.Lett.B521:133-138,2001 · 12 pages, LaTeX; new material on the stability analysis and on the interaction potential added, reference list enlarged and updated; to be published in PLB
arxiv created 2001/10/17 · arxiv updated 2009/11/30
We demonstrate that a suitable coupling between a quintessence scalar field and a pressureless cold dark matter (CDM) fluid leads to a constant ratio of the energy densities of both components which is compatible with an accelerated expansion of the Universe.