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arXiv · 2002.03798

Probing $\kappa(R,T)$ cosmology via empirical approach

Nasr Ahmed·Anirudh Pradhan
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Abstract

In this paper, a stable flat cosmological model has been constructed and the evolution of dark energy has been investigated in the framework of the recently suggested $\kappa(R,T)$ gravity. The empirical approach we adopt in the current work reveals some interesting cosmological features consistent with observations and the standard $\Lambda$CDM model. The evolution of cosmic pressure shows a positive-to-negative transition corresponding to the cosmic deceleration-acceleration transition, both the deceleration parameter and the cosmic pressure have the positive-to-negative sign flipping. While this behavior can provide explanation for the deceleration-acceleration transition, the reason behind this positive-negative transition itself is still missing.

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Nasr Ahmed, Anirudh Pradhan. 2020-02-05. Probing $\kappa(R,T)$ cosmology via empirical approach. https://arxiv.org/abs/2002.03798

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