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Semiclassical bounce with strong minimal assumptions

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arxiv 2402.18785 v3 pith:KYLIZJGC submitted 2024-02-29 gr-qc hep-th

classification gr-qchep-th
keywords bouncesolutionassumptionsradiationsemiclassicalstronguniverseacceptable
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We explore the possibility of avoiding cosmological singularity with a bounce solution in the early Universe. The main finding is that simple and well-known semiclassical correction, which describes the mixing of radiation and gravity in the effective action, may provide an analytic solution with a bounce. The solution requires a positive beta function for the total radiation term and the contraction of the Universe at the initial instant. The numerical estimate shows that the bounce may occur in an acceptable range of energies, but only under strong assumptions about the particle physics beyond the Standard Model.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Gravitational Bounce from the Quantum Exclusion Principle

    gr-qc 2025-05 reject novelty 5.0 of 10

    A closed collapsing fluid ball with a hypothetical maximum density bounces into exponential expansion, which the authors equate with inflation and dark energy, predicting a small negative curvature.

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