Generalized Curvature-Matter Couplings in Modified Gravity
نویسندگان
چکیده
منابع مشابه
Generalized Curvature-Matter Couplings in Modified Gravity
In this work, we review a plethora of modified theories of gravity with generalized curvature-matter couplings. The explicit nonminimal couplings, for instance, between an arbitrary function of the scalar curvature R and the Lagrangian density of matter, induces a non-vanishing covariant derivative of the energy-momentum tensor, implying non-geodesic motion and, consequently, leads to the appea...
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where Lm is the matter part Lagrangian. The gravitational field equation is presented in Eq. (2) of [1]. In contrast with the situation with generalized f(φ,R) gravity in Eq. (27), the gravity with Ricci-curvature square term in the action does not have the conformal symmetry to Einstein gravity [2]. In [1] we analysed the gravitational wave and derived a fourth order differential equation. How...
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ژورنال
عنوان ژورنال: Galaxies
سال: 2014
ISSN: 2075-4434
DOI: 10.3390/galaxies2030410