Cosmology with running parameters
arXiv:gr-qc/0512030 · doi:10.1088/1742-6596/39/1/044
Abstract
The experimental evidence that the equation of state (EOS) of the dark energy (DE) could be evolving with time/redshift (including the possibility that it might behave phantom-like near our time) suggests that there might be dynamical DE fields that could explain this behavior. We propose, instead, that a variable cosmological term (including perhaps a variable Newton's gravitational coupling too) may account in a natural way for all these features.
Talk given at TAUP 2005, Zaragoza, Spain, 10-14 Sep 2005