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Curvature driven acceleration : a utopia or a reality ?

Sudipta Das·Narayan Banerjee·Naresh Dadhich
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Abstract

The present work shows that a combination of nonlinear contribution from the Ricci curvature in Einstein field equations can drive a late time acceleration of expansion of the universe. The transit from the decelerated to the accelerated phase of expansion takes place smoothly without having to resort to a study of asymptotic behaviour. This result emphasizes the need for thorough and critical examination of models with nonlinear contribution from the curvature.

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Sudipta Das, Narayan Banerjee, Naresh Dadhich. 2005-07-23. Curvature driven acceleration : a utopia or a reality ?. https://doi.org/10.1088/0264-9381%2F23%2F12%2F012

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