Cosmology from quantum potential Ahmed Farag Ali <http://arxiv.org/find/gr-qc/1/au:+Ali_A/0/1/0/all/0/1>, Saurya Das <http://arxiv.org/find/gr-qc/1/au:+Das_S/0/1/0/all/0/1> (Submitted on 11 Apr 2014 (v1 <http://arxiv.org/abs/1404.3093v1>), last revised 29 Dec 2014 (this version, v3))
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. http://arxiv.org/abs/1404.3093v3 No Big Bang singularity or obscure dark stuff needed if I understand correctly, which can be refreshing from time to time. ;-) PGC -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
