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arXiv · 1909.05816

Model for a time-symmetric Milne-like universe without big bang curvature singularity

F. R. Klinkhamer·E. Ling
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Abstract

We present a physics model for a time-symmetric Milne-like universe. The model is based on the $q$-theory approach to the cosmological constant problem, supplemented by an assumed vacuum-matter energy exchange possibly due to quantum-dissipative effects. Without fine-tuning of the initial vacuum energy density, we obtain a harmless big bang singularity (with finite values of the Ricci and Kretschmann curvature scalars) and attractor behavior towards Minkowski spacetime. The time-symmetric spacetime manifold of our model may provide the proper setting for a possible CPT-symmetric universe.

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F. R. Klinkhamer, E. Ling. 2019-09-12. Model for a time-symmetric Milne-like universe without big bang curvature singularity. https://arxiv.org/abs/1909.05816

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