Self-energy contributions to the dynamic structure factor of an electron liquid |
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| Authors: | Göran Niklasson |
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| Affiliation: | Institute of Theoretical Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden |
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| Abstract: | It is demonstrated that the experimentally observed two-peak structure in the dynamic structure factor of an electron liquid cannot be explained by the finite life-times of the quasiparticles in the way proposed by Mukhopadhyay et al. The two-peak structure obtained by them disappears if the frequency dependence of the one-particle self-energy is taken into account. |
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