Fermi edge restoration in the Tomonaga-Luttinger model with impurities

Details Fermi edge restoration in the Tomonaga-Luttinger model with impurities Fermi edge restoration in the Tomonaga-Luttinger model with impurities

1995-10-30

arxiv.org/abs/cond-mat/9510166v1

Physics

Condensed Matter

11 pages, RevTex, 1 figure available upon request on e-mail naon@venus.fisica.unlp.edu.ar

Scientific paper

We study the Tomonaga-Luttinger model in the presence of magnetic (Kondo-like) impurities. By using a recently proposed field-theoretical approach to non-local bosonization we obtain the effective action describing the low-energy charge and spin density fluctuations. From this action the dispersion relations of the collective modes are readily found. We also compute the momentum distribution and show that the electron-impurity scattering allows to have restoration of the Fermi liquid behavior.

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