Study of Antigravity in an F(R) Model and in Brans-Dicke Theory with Cosmological Constant

We study antigravity, that is having an effective gravitational constant with a negative sign, in scalar-tensor theories originating from \(F(R)\)-theory and in a Brans-Dicke model with cosmological constant. For the \(F(R)\) theory case, we obtain the antigravity scalar-tensor theory in the Jordan...

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Veröffentlicht in:	arXiv.org 2014-08
Hauptverfasser:	Oikonomou, V K, Karagiannakis, N
Format:	Artikel
Sprache:	eng
Schlagworte:	Antigravity Cosmological constant Gravitation theory Gravitational constant Lagrange multiplier Mathematical models Tensors Time dependence
Online-Zugang:	Volltext
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