cosmological expansion 1gravitational waves 1nonlinear interactions 1numerical simulations 1turbulence 1
From the 1 of 2 linked papers with an AI index.
2 papers
gr-qc2026
Nonlinear Gravitational Wave Interactions in an Expanding Universe
Fan Zhang, Lee Lindblom, Zhi-Peng Peng
The paper numerically investigates how gravitational waves interact nonlinearly in an expanding universe, revealing energy cascades toward longer and shorter wavelengths that follo…
gr-qc2026
Solving Einstein's Equation Numerically on Manifolds with Non-Orientable Spatial Slices
Fan Zhang, Lee Lindblom
This paper presents solutions to Einstein's equation -- and the numerical methods used to construct them -- that describe simple cosmological models on manifolds with compact non-o…