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   Articles with "hopf insulator" as a keyword



Constructing Hopf Insulator from Geometric Perspective of Hopf Invariant

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recommendations! Published in 2024 at "Chinese Physics Letters"

DOI: 10.1088/0256-307x/41/3/037302

Abstract: We propose a method to construct Hopf insulators based on the study of topological defects from the geometric perspective of Hopf invariant I. Firstly, we prove two types of topological defects naturally inhering in the… read more here.

Keywords: perspective hopf; hopf insulator; geometric perspective; hopf ... See more keywords

Non-Hermitian three-dimensional two-band Hopf insulator

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recommendations! Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.102.035101

Abstract: The Hopf insulator is a three-dimensional topological insulator outside the standard classification of topological insulators. Here we consider two types of non-Hermitian Hopf insulators, one without and one with the non-Hermitian skin effect. The isolated… read more here.

Keywords: hopf insulator; non hermitian; three dimensional; hopf index ... See more keywords

Symmetry-protected topological Hopf insulator and its generalizations

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recommendations! Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.95.161116

Abstract: The tenfold way classification of noninteracting topological insulators represents a great success towards understanding topological states of matter. The question the authors try to address is: can all possible topological insulators be represented by the… read more here.

Keywords: hopf insulator; way classification; tenfold way; insulator ... See more keywords

Realization of a Hopf Insulator in Circuit Systems.

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recommendations! Published in 2023 at "Physical review letters"

DOI: 10.1103/physrevlett.130.057201

Abstract: Three-dimensional (3D) two-band Hopf insulators are a paradigmatic example of topological phases beyond the topological classifications based on powerful methods like K theory and symmetry indicators. Since this class of topological insulating phases was theoretically… read more here.

Keywords: hopf insulator; hopf; realization; insulator circuit ... See more keywords