Spectral density in time‐dependent perturbation theory
作者:
Ad Lagendijk,
期刊:
American Journal of Physics
(AIP Available online 1976)
卷期:
Volume 44,
issue 11
页码: 1098-1100
ISSN:0002-9505
年代: 1976
DOI:10.1119/1.10568
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
The spectral density of radiation is defined within the context of the random phase approximation. This gives an expression for the radiation density in terms of the Fourier components of the field amplitudes. The result is applied to the case of a molecule in interaction with light. The approach with Fourier integrals overcomes some difficulties associated with an approach which uses a summation of discrete waves.
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