# On the correctness of cosmology from quantum potential

@article{Lashin2015OnTC, title={On the correctness of cosmology from quantum potential}, author={E. I. Lashin}, journal={arXiv: General Relativity and Quantum Cosmology}, year={2015} }

We examine in detail the cosmology based on quantal (Bohmian) trajectories as suggested in a recent study arXiv:1404.3093[gr-qc]. We disagree with the conclusions regarding predicting the value of the cosmological constant $\Lambda$ and evading the big bang singularity. Furthermore, we show that the approach of using a quantum corrected Raychaudhuri equation (QRE), as suggested in arXiv:1404.3093[gr-qc], is unsatisfactory, because, essentially, it uses the Raychaudhuri equation, which is a…

## 2 Citations

Perturbative instability of inflationary cosmology from quantum potentials

- Physics
- 2017

AbstractIt was argued that the Raychaudhuri equation with a quantum correction term seems to avoid the Big Bang singularity and to characterize an everlasting Universe (Ali and Das in Phys Lett B…

Space-Time Second-Quantization Effects and the Quantum Origin of Cosmological Constant in Covariant Quantum Gravity

- PhysicsSymmetry
- 2018

The quantum origin of the cosmological constant is investigated and is shown to be ascribed to the non-linear Bohm quantum interaction of the gravitational field with itself in vacuum and to depend generally on the realization of the quantum probability density for the quantum gravitational field tensor.

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