Rayleigh-Brillouin light scattering spectra of CO₂ from molecular dynamics

Rayleigh-Brillouin light scattering spectra of CO₂ at ultraviolet wavelengths are computed from molecular dynamics which depends on intermolecular potentials only. We find excellent agreement with state of the art experimental data. This agreement was reached in a minimal computational box with sides one scattering wavelength long and integrating the classical trajectories over 20 ns. We also find complete consistency with models based on kinetic theory, which take known values of the transport coefficients as input.