Abstract

Straightforward discretization of the equations of motion of a quasi-continuum interacting with an electromagnetic field often leads to physical and numerical difficulties. We derive two distinct methods for reducing the number of energy levels that must be treated explicitly in such calculations. One of these applies to bands of quasi-continua with slowly decreasing shoulders; the other, to bands with rapidly decreasing shoulders.

© 1984 Optical Society of America

Multichannel excitation of the quasi-continuum

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Sudden and adiabatic approximations in the excitation of a quasi-continuum

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