Recalculation of 4kFcorrelations in one-dimensional systems
- 1 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 42 (1) , 1015-1017
- https://doi.org/10.1103/physrevb.42.1015
Abstract
The 4 response function is recalculated for the one-dimensional electron system in the presence of the umklapp matrix element . It is shown that the 1/ singularity is replaced by a finite value below the energy gap set by .
Keywords
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