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gr-qc2026
Action-level characterization of gravitational-wave propagation in dynamical Barbero--Immirzi gravity
Zhi-Fu Gao, Hui Wang, Luiz Carlos Garcia de Andrade +3
We investigate which operators in first-order dynamical Barbero--Immirzi (BI) gravity control cosmological tensor propagation at the action level. Within a bosonic, two-derivative,…
gr-qc2009
Mean-field cosmological dynamo curvature vs turbulence spectrum in Riemannian space
L Garcia de Andrade
Previous attempts for building a cosmic dynamo including preheating in inflationary universes [Bassett et al Phys Rev (2001)] has not included mean field dynamos. Here, a mean fiel…