37 citations · 152 across the 15 of their papers we have counts for
3 papers · 1 filter
Local conformal symmetry in non-Riemannian geometry and the origin of physical scales
Marco de Cesare, John W. Moffat, Mairi Sakellariadou
We introduce an extension of the Standard Model and General Relativity built upon the principle of local conformal invariance, which represents a generalization of a previous work…
Effective cosmological constant induced by stochastic fluctuations of Newton's constant
Marco de Cesare, Fedele Lizzi, Mairi Sakellariadou
We consider implications of the microscopic dynamics of spacetime for the evolution of cosmological models. We argue that quantum geometry effects may lead to stochastic fluctuatio…
Accelerated expansion of the Universe without an inflaton and resolution of the initial singularity from Group Field Theory condensates
Marco de Cesare, Mairi Sakellariadou
We study the expansion of the Universe using an effective Friedmann equation obtained from the dynamics of GFT (Group Field Theory) isotropic condensates. The evolution equations a…