Fermi edge restoration in the Tomonaga-Luttinger model with impurities
Carlos Naón, María Cecilia von Reichenbach, Marta L. Trobo
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.
arXiv:cond-mat/9510166•Oct 30, 1995•0 citations