YANG SHEN

Space-Folding Bounce Cosmology Without Ghost: A R^2-Corrected Non-Singular Origin of the Big Bang

The standard \LambdaCDM cosmological model inevitably encounters a spacetime singularity when extrapolated backward in time, where the scale factor a \to 0, density \rho \to \infty, and general relativity breaks down. While the Penrose-Hawking singularity theorems formalize this breakdown, they do not specify what phys...