Energy conditions and stability in f(R) theories of gravity with nonminimal coupling to matter

By O. Bertolami, M. Sequeira. 2009

140 citations recorded by the source corpus.

Recently, in the context of f(R) modified theories of gravity, a new type of model has been proposed where one directly couples the scalar curvature to matter. As any model in f(R) theory, there are certain conditions which have to be satisfied in order to ensure that the model is viable and physically meaningful. In this paper, one considers this new class of models with curvature-matter coupling and study them from the point of view of the energy conditions and of their stability under the Dolgov-Kawasaki criterion.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/cbaa181621eacc7ed604b313bf4401184d03cf0d

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

In Nuclear and High Energy Physics

Citations in the corpus

Generalized Curvature-Matter Couplings in Modified Gravity (2014, methodology): “ll be considered in the next subsection. In our presentation we closely follow [95]. Consider a one-parameter congruence of curves x(s;), so that for each = 0 = constant, x(s; 0) satisﬁes Eq. (69). We suppose the parametrization to be smooth, and hence we can introduce the tangent vector ﬁelds alo”