engleski

Recalculation of 4kF correlations in one-dimensional systems

The 4kF response function is recalculated for the one-dimensional electron system in the presence of the umklapp matrix element g3. It is shown that the 1/ωc2-4γ singularity is replaced by a finite value below the energy gap set by g3.

quasi-one-dimensional conductors ; Luttinger liquid ; Umklapp ; electron-electron interaction

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