Comment on "Observation of the e/3 fractionally charged Laughlin quasiparticles" and "Direct Observation of Fractional Charge"

TL;DR

This paper provides a critical commentary on two prior studies that reported the observation of fractional charge in Laughlin quasiparticles, discussing their methodologies and interpretations.

Contribution

It offers an analysis and critique of the experimental evidence and conclusions presented in the previous works on fractional charge observation.

Findings

Highlights potential limitations in the original experiments

Questions the interpretation of fractional charge measurements

Suggests alternative explanations for the observed phenomena

Abstract

comment on cond-mat/97063007 and cond-mat/9707289