Comment on "study of counterintuitive transport properties in the Aubry-André-Harper model via entanglement entropy and persistent current"
; Alcoba, Diego Ricardo ; Torre, Alicia ; Lain, Luis ; Oña, Ofelia Beatriz ; Ríos, Elías Daniel Otros responsables
Fecha
2020-05-15
Editorial
American Physical Society
Revista
Physical Review B
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ISSN
2469-9950
eISSN
2469-9969
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Inglés
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Resumen
In a recent study of the transport properties in the Aubry-André-Harper model [Phys. Rev. B 100, 195143 (2019)], the authors point out the failure of the Hellmann-Feynman theorem (HFT) in the case of degenerate states. They try to support such a statement from earlier papers that prove exactly the opposite. It appears that the application of the HFT to degenerate states has not been well understood. For this reason, in this Comment we illustrate the correct application of the HFT to the model just mentioned.
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Identificadores
Fernández, Francisco Marcelo; Alcoba, Diego Ricardo; Torre, Alicia; Lain, Luis; Oña, Ofelia Beatriz; et al.; Comment on "study of counterintuitive transport properties in the Aubry-André-Harper model via entanglement entropy and persistent current"; American Physical Society; Physical Review B; 101; 19; 15-5-2020; 1-4
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