Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems
Abstract: Topological insulators constitute one of the most intriguing phenomena in modern condensed matter theory. The unique and exotic properties of topological states of matter allow for unidirectional gapless electron transport and extremely accurate measurements of the Hall conductivity. Recently, new topological effects occurring at Dirac/Weyl points have been better understood and demonstrated using artificial materials such as photonic and phononic crystals, metamaterials and electrical circuits. In comparison, the topological properties of nodal lines, which are one-dimensional degeneracies in momentum space, remain less explored. Here, we explain the theoretical concept of topological nodal lines and review recent and ongoing progress using artificial materials. The review includes recent demonstrations of non-Abelian topological charges of nodal lines in momentum space and examples of nodal lines realized in photonic and other systems. Finally, we will address the challenges involved in both experimental demonstration and theoretical understanding of topological nodal lines.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Nodal lines in momentum space: topological invariants and recent realizations in photonic and other systems ; volume:11 ; number:11 ; year:2022 ; pages:2779-2801 ; extent:23
Nanophotonics ; 11, Heft 11 (2022), 2779-2801 (gesamt 23)
- Creator
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Park, Haedong
Gao, Wenlong
Zhang, Xiao
Oh, Sang Soon
- DOI
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10.1515/nanoph-2021-0692
- URN
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urn:nbn:de:101:1-2022120813033759858498
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:37 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Park, Haedong
- Gao, Wenlong
- Zhang, Xiao
- Oh, Sang Soon
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