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- URN zum Zitieren dieses Dokuments:
- urn:nbn:de:bvb:355-epub-462615
- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.46261
Zusammenfassung
The expansion of the conductivity in 2- d quantum Lorentz models in terms of the scatterer density n is considered. We show that nonanalyticities in the density expansion due to scattering processes with small and large momentum transfers, respectively, have different functional forms. Some of the latter are not logarithmic, but rather of power-law nature, in sharp contrast to the 3- d case. In a ...
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