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Bosonization on the lattice: the emergence of the higher harmonics

Jaime Ferrer·J. González·M. -A. Martín-Delgado
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Abstract

A general and transparent procedure to bosonize fermions placed on a lattice is presented. Harmonics higher than $k_F$ are shown to appear in the one-paticle Green function, due to the compact character of real electron bands. Quantitative estimations of the role of these higher harmonics are made possible by the bosonization technique presented here.

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Jaime Ferrer, J. González, M. -A. Martín-Delgado. 1994-09-06. Bosonization on the lattice: the emergence of the higher harmonics. https://doi.org/10.1103/physrevb.51.4807

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