Speaker
Prof.
Nick Mavromatos
(NTUA)
Description
I review a model of (metastable) approximately de-Sitter inflation induced by a condensate of chiral primordial gravitational waves in the early Universe in string-inspired Chern-Simons cosmologies, with gravitational anomalies. The model maps to a running vacuum model cosmology, and has the capability of alleviating the modern era cosmological tension under some natural assumptions.