Comment on "Anomalous Edge State in a Non-Hermitian Lattice"
classification
🪐 quant-ph
cond-mat.otherphysics.class-ph
keywords
commentconclusionsanomalousbbbcbreakdownbulk-boundarycannotcite
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In this comment, we criticize three main conclusions of the letter\cite{Lee2016}. We show that the concept of fractional winding number(FWN) is factitious, Lee's conclusions on Fig. 3 are finite-size effect and the breakdown of bulk-boundary correspondence (BBBC) cannot be explained by "defective".
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