首页|Non-minimal coupling inspires the Dirac cosmological model

Non-minimal coupling inspires the Dirac cosmological model

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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 non-minimal coupling between the energy source and geometry and vise versa, in a compatible way with the current accelerated universe.

Amir Hadi Ziaie、Hooman Moradpour、Umesh Kumar Sharma、Hamid Shabani

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数理科学、化学(物理学)

首发时间:2021-07-11