Comment on "Conductance scaling in Kondo-correlated quantum dots: Role of level asymmetry and charging energy"

被引：3

作者：

Aligia, A. A. ^{[1
,2
]}

机构：

[1] Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[2] Comis Nacl Energia Atom, Inst Balseiro, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

来源：

PHYSICAL REVIEW B | 2014年 / 90卷 / 07期

关键词：

MODEL;

D O I：

10.1103/PhysRevB.90.077101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In a recent work [Merker, Kirchner, Munoz, and Costi, Phys. Rev. B 87, 165132 (2013)], the authors compared the results of numerical renormalization group (NRG) and a perturbative approach for the dependence on temperature T and magnetic field B of the conductance through a quantum dot described by the impurity Anderson model, for small T and B. We show that the equation used to extract the dependence on B from NRG results is incorrect out of the particle-hole symmetric case. As a consequence, in the Kondo regime, the correct NRG results have a weaker dependence on B and the disagreement between both approaches increases.

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页数：3

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