Cosmology from quantum potential ( Ahmed Farag Ali, Saurya Das ) It was shown recently that replacing classical geodesics with quantal (Bohmian) trajector

Cosmology from quantum potential ( Ahmed Farag Ali, Saurya Das ) It was shown recently that replacing classical geodesics with quantal (Bohmian) trajectories gives rise to a quantum corrected Raychaudhuri equation (QRE). In this article we derive the second order Friedmann equations from the QRE, and show that this also contains a couple of quantum correction terms, the first of which can be interpreted as cosmological constant (and gives a correct estimate of its observed value), while the second as a radiation term in the early universe, which gets rid of the big-bang singularity and predicts an infinite age of our universe. [1] [1] http://arxiv.org/pdf/1404.3093v3.pdf http://arxiv.org/pdf/1404.3093v3.pdf