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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
