عنوان مجله
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European Physical Journal Plus
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چکیده
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In the framework of the generalized Rastall theory (GRT), we study the ability of
a non-minimal coupling between geometry and matter fields in order to provide a setting,
which allows for a variable G during the cosmic evolution. In this regard, the compatibility of
this theory with Dirac hypothesis on the variations of G is investigated, and additionally, the
possibility of obtaining the current accelerated universe is also addressed. In summary, our
study indicates that, in GRT, having in hand the G profile, one may find the corresponding nonminimal coupling between the energy source and geometry and vice versa, in a compatible
way with the current accelerated universe.
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