Abstract

The Comment of A. A. Aligia claims that the superperturbation theory (SPT) approach [E. Munoz, C. J. Bolech, and S. Kirchner, Phys. Rev. Lett. 110, 016601 (2013)] formulated using dual fermions [A. N. Rubtsov, M. I. Katsnelson, and A. I. Lichtenstein, Phys. Rev. B 77, 033101 (2008)] and used by us to compare with numerical renormalization group (NRG) results for the conductance [L. Merker, S. Kirchner, E. Munoz, and T. A. Costi, Phys. Rev. B 87, 165132 (2013)], fails to correctly extend the results of the symmetric Anderson impurity model (SIAM) for general values of the local level E-d in the Kondo regime. We answer this criticism. We also compare new NRG results for c(B), with c(B) calculated directly from the low-field conductance, with new higher-order SPT calculations for this quantity, finding excellent agreement for all E-d and for U/pi Delta extending into the strong coupling regime.