An interacting scalar field and the recent cosmic acceleration
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چکیده
In this paper it is shown that the Brans Dicke scalar field itself can serve the purpose of providing an early deceleration and a late time acceleration of the universe without any need of quintessence field if one considers an interaction, i.e, transfer of energy between the dark matter and the Brans Dicke scalar field.
منابع مشابه
A late time acceleration of the universe with two scalar fields : many possibilities
In the present work, an attempt has been made to explain the recent cosmic acceleration of the universe with two mutually interacting scalar fields, one being the Brans Dicke scalar field and the other a quintessence scalar field. Conditions have been derived for which the quintessence scalar field has an early oscillation and it grows during a later time to govern the dynamics of the universe.
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تاریخ انتشار 2005