3 papers
astro-ph.CO2026
The art of simulating the early Universe. Part III: Scalar-Gauge-Fluid Dynamics
Daniel G. Figueroa, Kenneth Marschall, Antonino S. Midiri +1
The paper reviews lattice-based methods for simulating fluid dynamics in the early Universe, including how fluids couple to scalar and gauge fields and how to set up initial condit…
astro-ph.CO2026
Equation of state during (p)reheating with trilinear interactions
Stefan Antusch, Kenneth Marschall, Francisco Torrenti
We characterize the post-inflationary evolution of the equation of state of the universe from the end of inflation until the onset of radiation domination, when the inflaton is cou…
astro-ph.CO2026
The art of simulating the early Universe. Part II. Non-canonical cases & gravitational waves
Jorge Baeza-Ballesteros, Daniel G. Figueroa, Adrien Florio +7
We present a discussion on lattice techniques for the simulation of non-canonical field theory circumstances, complementing our previous monograph (arXiv:2006.15122) on canonical c…