479 citations · 2.5k across the 28 of their papers we have counts for
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On the consistency of non-minimally coupled f(R) gravity
Nicola Tamanini, Tomi S. Koivisto
Theories with a non-minimal coupling between the space-time curvature and matter fields introduce an extra force due to the non-conservation of the matter energy momentum. In the p…
The Cosmology of Interacting Spin-2 Fields
Nicola Tamanini, Emmanuel N. Saridakis, Tomi S. Koivisto
We investigate the cosmology of interacting spin-2 particles, formulating the multi-gravitational theory in terms of vierbeins and without imposing any Deser-van Nieuwenhuizen-like…
Einstein static Universe in hybrid metric-Palatini gravity
Christian G. Boehmer, Francisco S. N. Lobo, Nicola Tamanini
Hybrid metric-Palatini gravity is a recent and novel approach to modified theories of gravity, which consists of adding to the metric Einstein-Hilbert Lagrangian an f(R) term const…
Ghosts in pure and hybrid formalisms of gravity theories: a unified analysis
Tomi S. Koivisto, Nicola Tamanini
In the first order formalism of gravitational theories, the spacetime connection is considered as an independent variable to vary together with the metric. However, the metric stil…
The Biconnection Variational Principle for General Relativity
Nicola Tamanini
A recently proposed variational approach for general relativity where, in addition to the metric tensor, two independent affine connections enter the action as dynamical variables,…
Definition of Good Tetrads for f(T) Gravity
Nicola Tamanini, Christian G. Boehmer
The importance of choosing suitable tetrads for the study of exact solutions in f(T) gravity is discussed. For any given metric, we define the concept of good tetrads as the tetrad…