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Does adding quantum curvature change the Big Bounce?

Ilkka Mäkinen

June 1, 2026

Loop quantum cosmology replaces the Big Bang singularity with a 'quantum bounce' — a minimum size the universe can't shrink below. Adding a quantum curvature correction term to the standard equations preserves this bounce and its time-symmetric trajectory, but shifts it to a significantly smaller volume. The result suggests the bounce is qualitatively robust to this modification, though its precise scale depends on how quantum geometry is encoded.
Published as Effective dynamics of a homogeneous and isotropic universe with quantum curvature arXiv:2606.01930
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