Abstract
The quantum theory is applied for the accurate computation of high-frequency (up to ) spectral intensities in Ar - Ar collision-induced light scattering (CILS) processes at room temperature. Numerically, this becomes possible by means of the two-point Fox - Goodwin integrator, propagating on a grid the ratio of the wavefunction at adjacent points. Wavefunctions are normalized in a handy way which is based on the notion of the local wavenumber. Various potentials and anisotropy models are tested and compared. For frequencies exceeding our results show significant deviations as compared to the theoretical predictions of the classical theory. When the self-consistent field (SCF) anisotropy is applied, a clear tendency of the quantum calculation to approach recent experimental data is observed.
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