Cosmology from quantum potential
Date
2016-01-20
Authors
Ali, Ahmed Farag
Das, Saurya
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Abstract
It was shown recently that replacing classical geodesics with quantal (Bohmian) trajectories gives
rise to a quantum corrected Raychaudhuri equation (QRE). Here 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), or as dark matter, 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.
Description
Sherpa Romeo green journal. Open access article. Creative Commons Attribution License (CC BY) applies.
Keywords
Quantum correction , Big-bang , Dark matter
Citation
Ali, A. F., & Das, S. (2015). Cosmology from quantum potential. Physics Letters B, 741(4), 276-279. doi: 10.1016/j.physletb.2014.12.057