Instability of the big bang coordinate singularity in a Milne-like universe
arXiv:1911.11116
Abstract
We present a simplified dynamic-vacuum-energy model for a time-symmetric Milne-like universe. The big bang singularity in this simplified model, like the one in a previous model, is just a coordinate singularity with finite curvature and energy density. We then calculate the dynamic behavior of scalar metric perturbations and find that these perturbations destabilize the big bang singularity.
arXiv comment20 pages, 4 figures, v2: minor changes
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