Bosonization for 2D Interacting Fermion Systems: Non-Fermi Liquid Behavior

Details Bosonization for 2D Interacting Fermion Systems: Non-Fermi Liquid Behavior Bosonization for 2D Interacting Fermion Systems: Non-Fermi Liquid Behavior

1994-01-11

arxiv.org/abs/cond-mat/9401018v1

Physics

Condensed Matter

13 pages, 2 figures upon request, latex. (to appear in Mod. Phys. Lett. B)

Scientific paper

Non-Fermi liquid behavior is found for the first time in a two-dimensional (2D) system with non-singular interactions using Haldane's bosonization scheme. The bosonized system is solved exactly by a generalized Bogoliubov transformation. The fermion momentum distribution, calculated using a generalized Mattis-Lieb technique, exhibits a non-universal power law in the vicinity of the Fermi surface for intermediate interaction strengths.

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