CoherentSpacetimeSuperfluidCyclicCosmology

This paper proposes a coherent spacetime superfluid cyclic cosmological model that takes a globally coherent, incompressible spacetime superfluid as the fundamental substrate of the universe. It regards the central supermassive black hole cluster as high-density vortices in the superfluid, which emit coherent waves through superradiance and the Penrose process. After perfect reflection at the cosmic boundary, these waves accumulate interference and trigger a phase transition, realizing the cyclic evolution of cosmic contraction–bounce–expansion. The model avoids the Big Bang initial singularity, naturally explains the Hubble tension and CMB low-multipole anomalies, unifies the dynamical properties of dark matter and dark energy, and provides a series of testable observational predictions. Numerical simulations verify the self-consistency of the bounce mechanism, offering a new coherent theoretical framework for cyclic cosmology.