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Article: Gauge Field Induced Chiral Zero Mode in Five-Dimensional Yang Monopole Metamaterials

TitleGauge Field Induced Chiral Zero Mode in Five-Dimensional Yang Monopole Metamaterials
Authors
Issue Date15-Jun-2023
PublisherAmerican Physical Society
Citation
Physical Review Letters, 2023, v. 130, n. 24, p. 1-6 How to Cite?
Abstract

Owing to the chirality of Weyl nodes characterized by the first Chern number, a Weyl system supports one-way chiral zero modes under a magnetic field, which underlies the celebrated chiral anomaly. As a generalization of Weyl nodes from three-dimensional to five-dimensional physical systems, Yang monopoles are topological singularities carrying nonzero second-order Chern numbers c2=±1. Here, we couple a Yang monopole with an external gauge field using an inhomogeneous Yang monopole metamaterial and experimentally demonstrate the existence of a gapless chiral zero mode, where the judiciously designed metallic helical structures and the corresponding effective antisymmetric bianisotropic terms provide the means for controlling gauge fields in a synthetic five-dimensional space. This zeroth mode is found to originate from the coupling between the second Chern singularity and a generalized 4-form gauge field—the wedge product of the magnetic field with itself. This generalization reveals intrinsic connections between physical systems of different dimensions, while a higher-dimensional system exhibits much richer supersymmetric structures in Landau level degeneracy due to the internal degrees of freedom. Our study offers the possibility of controlling electromagnetic waves by leveraging the concept of higher-order and higher-dimensional topological phenomena.


Persistent Identifierhttp://hdl.handle.net/10722/329089
ISSN
2023 Impact Factor: 8.1
2023 SCImago Journal Rankings: 3.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMa, Shaojie-
dc.contributor.authorJia, Hongwei-
dc.contributor.authorBi, Yangang-
dc.contributor.authorNing, Shangqiang-
dc.contributor.authorGuan, Fuxin-
dc.contributor.authorLiu, Hongchao-
dc.contributor.authorWang, Chenjie-
dc.contributor.authorZhang, Shuang-
dc.date.accessioned2023-08-05T07:55:12Z-
dc.date.available2023-08-05T07:55:12Z-
dc.date.issued2023-06-15-
dc.identifier.citationPhysical Review Letters, 2023, v. 130, n. 24, p. 1-6-
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10722/329089-
dc.description.abstract<p>Owing to the chirality of Weyl nodes characterized by the first Chern number, a Weyl system supports one-way chiral zero modes under a magnetic field, which underlies the celebrated chiral anomaly. As a generalization of Weyl nodes from three-dimensional to five-dimensional physical systems, Yang monopoles are topological singularities carrying nonzero second-order Chern numbers c2=±1. Here, we couple a Yang monopole with an external gauge field using an inhomogeneous Yang monopole metamaterial and experimentally demonstrate the existence of a gapless chiral zero mode, where the judiciously designed metallic helical structures and the corresponding effective antisymmetric bianisotropic terms provide the means for controlling gauge fields in a synthetic five-dimensional space. This zeroth mode is found to originate from the coupling between the second Chern singularity and a generalized 4-form gauge field—the wedge product of the magnetic field with itself. This generalization reveals intrinsic connections between physical systems of different dimensions, while a higher-dimensional system exhibits much richer supersymmetric structures in Landau level degeneracy due to the internal degrees of freedom. Our study offers the possibility of controlling electromagnetic waves by leveraging the concept of higher-order and higher-dimensional topological phenomena.<br></p>-
dc.languageeng-
dc.publisherAmerican Physical Society-
dc.relation.ispartofPhysical Review Letters-
dc.titleGauge Field Induced Chiral Zero Mode in Five-Dimensional Yang Monopole Metamaterials-
dc.typeArticle-
dc.identifier.doi10.1103/PhysRevLett.130.243801-
dc.identifier.scopuseid_2-s2.0-85163609301-
dc.identifier.volume130-
dc.identifier.issue24-
dc.identifier.spage1-
dc.identifier.epage6-
dc.identifier.eissn1079-7114-
dc.identifier.isiWOS:001025958700009-
dc.identifier.issnl0031-9007-

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