3 papers
hep-th2025
Toward a gravitational network: Bridging metric-affine gravity and no-scale supergravity
Ioannis D. Gialamas, Theodoros Katsoulas, Kyriakos Tamvakis
We consider a class of models in the framework of metric-affine gravity and establish their correspondence to the bosonic sector of a class of no-scale supergravity models. The exc…
gr-qc2025
Keeping the relation between the Starobinsky model and no-scale supergravity ACTive
Ioannis D. Gialamas, Theodoros Katsoulas, Kyriakos Tamvakis
We introduce a modification of the Starobinsky model in the form of an additional cubic Ricci scalar curvature term , scaled by a dimensionless parameter , with the r…
gr-qc2025
General Einstein-Cartan quadratic gravity with derivative couplings
Theodoros Katsoulas, Kyriakos Tamvakis
Within the framework of Einstein-Cartan gravity we consider an action, containing up to quadratic terms of the Ricci scalar and the Holst invariant, coupled non-minimally to a scal…