Topological invariant quintessence
DOI: 10.1142/S0217732315500698
关键词: Quintessence 、 Weyl tensor 、 Physics 、 f(R) gravity 、 Dark energy 、 Ricci decomposition 、 Scalar curvature 、 Riemann curvature tensor 、 Ricci curvature 、 Topology
摘要: The issues of quintessence and cosmic acceleration can be discussed in the framework of [Formula: see text] theories of gravity where R is the Ricci curvature scalar and [Formula: see text] is the Gauss–Bonnet topological invariant. It is possible to show that such an approach exhausts all the curvature content related to the Riemann tensor giving rise to a fully geometric approach to dark energy.
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