Collisional redistribution of radiation. II - The effects of degeneracy on the equations of motion for the density matrix. III - The equation of motion for the correlation function and the scattered spectrum

Details Collisional redistribution of radiation. II - The effects of degeneracy on the equations of motion for the density matrix. III - The equation of motion for the correlation function and the scattered spectrum Collisional redistribution of radiation. II - The effects of degeneracy on the equations of motion for the density matrix. III - The equation of motion for the correlation function and the scattered spectrum

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrva..22.2027b&link_type=abstract

Physical Review A - General Physics, 3rd Series, vol. 22, Nov. 1980, p. 2027-2060. NBS-supported research

Physics

General Physics

49

Atomic Collisions, Atomic Spectra, Equations Of Motion, Fluorescence, Rayleigh Scattering, Spectral Correlation, Absorption Spectra, Atom Concentration, Electron Transitions, Emission Spectra, Monochromatic Radiation, Radiation Distribution

Scientific paper

The effect of correlations between an absorber atom and perturbers in the binary-collision approximation are applied to degenerate atomic systems. A generalized absorption profile which specifies the final state of the atom after an absorption event is related to the total intensities of Rayleigh scattering and fluorescence from the atom. It is suggested that additional dynamical information to that obtainable from ordinary absorption experiments is required in order to describe redistributed atomic radiation. The scattering of monochromatic radiation by a degenerate atom is computed in a binary-collision approximation; an equation of motion is derived for the correlation function which is valid outside the quantum-regression regime. Solutions are given for the weak-field conditions in terms of generalized absorption and emission profiles that depend on the indices of the atomic multipoles.

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