From Dark Energy &; Dark Matter to Dark Metric |
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Authors: | S Capozziello M De Laurentis M Francaviglia and S Mercadante |
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Institution: | 1.Dipartimento di Scienze Fisiche,Università di Napoli “Federico II”,Naples,Italy;2.INFN Sez. di Napoli,Compl. Univ. di Monte S. Angelo,Naples,Italy;3.Dipartimento di Matematica,Università di Torino,Turin,Italy;4.INFN Sez. di Torino,Turin,Italy;5.Laboratorio per la Comunicazione Scientifica,Università della Calabria,Arcavacata di Rende (CS),Italy |
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Abstract: | We present a new approach to the mathematical objects of General Relativity in terms of which a generic f(R)-gravity theory gravitation is written in a first-order (à la Palatini) formalism, and introduce the concept of Dark Metric which could bypass the emergence of disturbing concepts as Dark Energy and Dark Matter. These issues are related to the fact
that General Relativity could not be the definitive theory of Gravitation due to several shortcomings that come out both from
theoretical and experimental viewpoints. At large scales, the attempts to match it with the recent observational data lead
to invoke Dark Energy and Dark Matter as the bulk components of the cosmic fluid. Since no final evidence, at fundamental
level, exists for such ingredients, it could be useful to reconsider the gravitational sector in order to see if suitable
extensions of General Relativity could solve the shortcomings present at infrared scales. |
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