Time-Dependent Statistical Mechanics 14. Electromagnetic absorption by dilute gases
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چکیده
When the electromagnetic field couples to the electric dipole moment of the Continuation of lecture 13 11/5/09 region under consideration, we see that the absorption spectrum, except for simple frequency-dependent factors, is proportional to the Fourier transform of the correlation function of the dipole moment. Using the methods we have been discussing, that correlation function can be written as
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