EPS0

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EPS0

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This card will only change results if run with the MPSE card. This card will renormalize the poles which represent the loss function so that it is consistent with the dielectric function specified by eps. The expected effect is that the broadening in the spectrum caused by the self-energy will increase as a function of eps, while the stretch (blue shifting of peaks relative to the edge) will decrease. Users should be careful with this card since the renormalization of the loss function shouldn’t change it’s shape too much. A drastic change of shape in the loss function indicates that the original loss function is probably not a very good representatoin of the true loss function, or the dielectric constant is not correct. To check the shape of the new loss function, compare a plot of columns 1 and 4 in exc.dat with a plot of columns 1 and 2 in loss.dat.

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