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arXiv:1404.3093gr-qc

Cosmology from quantum potential

Ahmed Farag Ali, Saurya Das

Abstract

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.

arXiv comments
4 pages, revtex4, 1 figure,references added, to appear in Phys. Lett. B
Journal reference
Phys.Lett. B741 (2015) 276
DOI
doi:10.1016/j.physletb.2014.12.057
Subjects
gr-qcGeneral Relativity and Quantum Cosmology astro-ph.COCosmology and Nongalactic Astrophysics hep-thHigh Energy Physics, Theory

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Linked by 2 identifiable commenters in 2 comments across 2 threads, from Feb 2015 to Feb 2015. Found in 1 HN submission from Feb 2015 to Feb 2015. Open submission discussions.

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  1. Astronomers find an ancient black hole the size of 12B suns 1 comment

    • 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…

      wozniackiView on HNParent context

  2. No Big Bang? Quantum equation predicts universe has no beginning 1 comment

    • This is a news article. For the research itself, see http://arxiv.org/abs/1404.3093v3 (PDF link: http://arxiv.org/pdf/1404.3093v3.pdf)

      kbwtView on HNParent context

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