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

Y. Yu·Y. M. Li·N. d'Ambrumenil
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Abstract

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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Y. Yu, Y. M. Li, N. d'Ambrumenil. 1994-01-11. Bosonization for 2D Interacting Fermion Systems: Non-Fermi Liquid Behavior. https://doi.org/10.1142/s0217984994000078

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