Comment on ``First-principles treatments of electron transport properties for nanoscale junctions''

TL;DR

This comment clarifies that the jellium model is suitable for modeling electron conductance in gold nanowires, countering previous claims of inadequacy and emphasizing its effectiveness in first-principles calculations.

Contribution

It corrects a misconception about the jellium model's suitability for nanoscale electron transport calculations in gold nanowires.

Findings

Jellium model provides results similar to more elaborate methods.

The model is adequate for studying conductance in gold nanowires.

Counteracts previous claims of the model's inadequacy.

Abstract

The recent paper by Fujimoto and Hirose makes an unfortunate error in discussing the use of the jellium model for the electrodes, which has the effect of making it appear that this model is not adequate to treat the problem of the conductance of gold nanowires. In fact it is entirely adequate, and gives results quite similar to those found in the authors' more elaborate treatment.