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One-dimensional Kondo lattice model as a Tomonaga-Luttinger liquid

N. Shibata·A. Tsvelik·K. Ueda
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Abstract

Arguments are presented that in the one-dimensional Kondo lattice model f-electron spins participate in filling of the Fermi sea. It is shown that in its paramagnetic phase this model belongs to the spin-1/2 Tomonaga-Luttinger liquid universality class. The ratio of the spin and charge velocities v_s/v_c and K_c are estimated to be of the order of (T_K/E_F)^{1/2}.

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N. Shibata, A. Tsvelik, K. Ueda. 1997-02-13. One-dimensional Kondo lattice model as a Tomonaga-Luttinger liquid. https://doi.org/10.1103/physrevb.56.330

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