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hep-th2026
Lattice Monte Carlo of on Euclidean de Sitter
Angelo Caravano
We report the first Monte Carlo simulation of quantum field theory on Euclidean de Sitter space, . Rather than discretizing space, we use a spectral lattice based on spherical…
astro-ph.CO2026
Ab Initio Cosmological Simulations: From Inflation to Present-Day Structure Formation
Drew Jamieson, Angelo Caravano, Eiichiro Komatsu
The cosmic web preserves a record of the physics that shaped the universe in its earliest moments, the period of exponential expansion known as cosmic inflation. However, if inflat…
astro-ph.CO2026
Lattice simulations of scalar-induced gravitational waves from inflation
Angelo Caravano, Gabriele Franciolini, Sébastien Renaux-Petel
Scalar-induced gravitational waves (SIGWs) provide a powerful probe of inflationary dynamics on scales far smaller than those accessible to the cosmic microwave background and larg…