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복잡계이론물리연구단
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Topological non-Hermitian origin of surface Maxwell waves

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dc.contributor.authorBliokh K.Y.-
dc.contributor.authorLeykam D.-
dc.contributor.authorLein M.-
dc.contributor.authorNori F.-
dc.date.available2019-05-02T08:09:05Z-
dc.date.created2019-02-18-
dc.date.issued2019-02-
dc.identifier.issn2041-1723-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/5717-
dc.description.abstractMaxwell electromagnetism, describing the wave properties of light, was formulated 150 years ago. More than 60 years ago it was shown that interfaces between optical media (including dielectrics, metals, negative-index materials) can support surface electromagnetic waves, which now play crucial roles in plasmonics, metamaterials, and nano-photonics. Here we show that surface Maxwell waves at interfaces between homogeneous isotropic media described by real permittivities and permeabilities have a topological origin explained by the bulk-boundary correspondence. Importantly, the topological classification is determined by the helicity operator, which is generically non-Hermitian even in lossless optical media. The corresponding topological invariant, which determines the number of surface modes, is a Z4 number (or a pair of Z2 numbers) describing the winding of the complex helicity spectrum across the interface. Our theory provides a new twist and insights for several areas of wave physics: Maxwell electromagnetism, topological quantum states, non-Hermitian wave physics, and metamaterials. © 2019, The Author(s)-
dc.description.uri1-
dc.language영어-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleTopological non-Hermitian origin of surface Maxwell waves-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000457582900024-
dc.identifier.scopusid2-s2.0-85061028444-
dc.identifier.rimsid66997-
dc.contributor.affiliatedAuthorLeykam D.-
dc.identifier.doi10.1038/s41467-019-08397-6-
dc.identifier.bibliographicCitationNATURE COMMUNICATIONS, v.10, no.1, pp.580-
dc.citation.titleNATURE COMMUNICATIONS-
dc.citation.volume10-
dc.citation.number1-
dc.citation.startPage580-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
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Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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