Cosmology with running parameters

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

References in corpus (11)

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Cited by in corpus (5)

• Dark energy: a quantum fossil from the inflationary Universe?
• Density Perturbations for Running Cosmological Constant
• Composite dark energy: cosmon models with running cosmological term and gravitational coupling
• Cosmological Constant Problems and Renormalization Group
• Interacting dark energy after DESI DR2: a challenge for $\Lambda$CDM paradigm?