Scaling and criticality of the Kondo effect in a Luttinger liquid

Details Scaling and criticality of the Kondo effect in a Luttinger liquid Scaling and criticality of the Kondo effect in a Luttinger liquid

1997-09-11

arxiv.org/abs/cond-mat/9709139v1

Phys. Rev. B 57, 10620 (1998).

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages REVTeX, incl. 9 PS figures, subm. to PRB

Scientific paper

10.1103/PhysRevB.57.10620

A quantum Monte Carlo simulation method has been developed and applied to study the critical behavior of a single Kondo impurity in a Luttinger liquid. This numerically exact method has no finite-size limitations and allows to simulate the whole temperature range. Focusing on the impurity magnetic susceptibility, we determine the scaling functions, in particular for temperatures well below the Kondo temperature. In the absence of elastic potential scattering, we find Fermi-liquid behavior for strong electron-electron interactions, g_c < 1/2, and anomalous power laws for 1/2

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