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 fram...

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Hauptverfasser:	Oikonomou, V. K, Karagiannakis, N
Format:	Artikel
Sprache:	eng
Schlagworte:	Physics - General Relativity and Quantum Cosmology
Online-Zugang:	Volltext bestellen
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