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Wulayimu, Maimaiti
복잡계 이론물리 연구단
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Non-Hermitian flat-band generator in one dimension

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dc.contributor.authorWulayimu Maimaiti-
dc.contributor.authorAlexei Andreanov-
dc.date.accessioned2021-08-12T07:50:02Z-
dc.date.accessioned2021-08-12T07:50:02Z-
dc.date.available2021-08-12T07:50:02Z-
dc.date.available2021-08-12T07:50:02Z-
dc.date.created2021-08-09-
dc.date.issued2021-07-07-
dc.identifier.issn2469-9950-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/10108-
dc.description.abstractFlat bands-dispersionless bands-have been actively studied thanks to their sensitivity to perturbations, which makes them natural candidates for hosting novel and exotic states of matter. In parallel, non-Hermitian systems have attracted much attention in recent years as a simplified description of open system with gain and loss, motivated by potential applications. In particular, non-Hermitian system with dispersionless energy bands in their spectrum have been studied theoretically and experimentally. In general, flat bands require fine tuning of the Hamiltonian or protection by a symmetry. A number of methods was suggested to construct non-Hermitian flat bands relying either on the presence of symmetries, or specific frustrated geometries, often inspired by Hermitian models featuring flat bands. We introduce a systematic method to construct non-Hermitian flat bands using one-dimensional two-band tight-binding networks as an example, extending the methods used to construct systematically Hermitian flat bands. We show that the non-Hermitian case admits fine-tuned, nonsymmetry protected flat bands and provides more types of flat bands than the Hermitian case.-
dc.language영어-
dc.publisherAMER PHYSICAL SOC-
dc.titleNon-Hermitian flat-band generator in one dimension-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000671586900001-
dc.identifier.scopusid2-s2.0-85111294784-
dc.identifier.rimsid76155-
dc.contributor.affiliatedAuthorWulayimu Maimaiti-
dc.contributor.affiliatedAuthorAlexei Andreanov-
dc.identifier.doi10.1103/PhysRevB.104.035115-
dc.identifier.bibliographicCitationPHYSICAL REVIEW B, v.104, no.3-
dc.relation.isPartOfPHYSICAL REVIEW B-
dc.citation.titlePHYSICAL REVIEW B-
dc.citation.volume104-
dc.citation.number3-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
dc.subject.keywordPlusHUBBARD-MODEL-
dc.subject.keywordPlusFERROMAGNETISM-
dc.subject.keywordPlusSYMMETRY-
dc.subject.keywordPlusPHYSICS-
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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