Reply to the reply to "Comment on Universal out-of-equilibrium transport in Kondo-correlated quantum dots"

TL;DR

This paper defends previous work on non-equilibrium Green functions in the impurity Anderson model by addressing critiques and clarifying the validity of the lesser self energy, reaffirming the original findings.

Contribution

The paper provides a detailed rebuttal to critiques of earlier non-equilibrium Green function calculations, confirming the correctness of the lesser self energy and clarifying theoretical misunderstandings.

Findings

The lesser self energy satisfies the Ward identity.

Clarification of theoretical arguments regarding non-equilibrium Green functions.

Updated references supporting the original analysis.

Abstract

I reply to the new arguments of Mu\~noz et al. (arXiv:1308.0638) regarding our controversy on non-equilibrium Green functions of the impurity Anderson model, and to new unfounded criticism to my paper Ref. 1 (arXiv:1110.0816). In particular, I show that the lesser self energy given in Ref. 1 does satisfy a Ward identity. References are updated.