prikaz prve stranice dokumenta Sub-symmetry-protected topological states
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Scientific paper - Original scientific paper
Sub-symmetry-protected topological states
Nature physics, 19(7) (2023); 992-998. urn:nbn:hr:237:964803
Wang, Ziteng; Wang, Xiangdong; Hu, Zhichan; Bongiovanni, Domenico; Jukić, Dario; Tang, Liqin; Song, Daohong; Morandotti, Roberto; Chen, Zhigang; Buljan, Hrvoje

Institutional repository: Repository of the Faculty of Civil Engineering, University of Zagreb

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Wang, Z., Wang, X., Hu, Z., Bongiovanni, D., Jukić, D., Tang, L. ... Buljan, H. (2023). Sub-symmetry-protected topological states. Nature physics, 19(7)., 992-998. Retrieved from https://urn.nsk.hr/urn:nbn:hr:237:964803

Wang, Ziteng, et al. "Sub-symmetry-protected topological states." Nature physics, vol. 19(7), 2023, pp. 992-998. https://urn.nsk.hr/urn:nbn:hr:237:964803

Wang, Ziteng, Xiangdong Wang, Zhichan Hu, Domenico Bongiovanni, Dario Jukić, Liqin Tang, Daohong Song, Roberto Morandotti, Zhigang Chen and Hrvoje Buljan. "Sub-symmetry-protected topological states." Nature physics 19(7) (2023): 992-998. https://urn.nsk.hr/urn:nbn:hr:237:964803

Wang, Z., et al. (2023) 'Sub-symmetry-protected topological states', Nature physics, 19(7), pp. 992-998. Available at: https://urn.nsk.hr/urn:nbn:hr:237:964803 (Accessed 24 December 2024)

Wang Z, Wang X, Hu Z, Bongiovanni D, Jukić D, Tang L, and sur.. Sub-symmetry-protected topological states. Nature physics [Internet]. 2023 [cited 2024 December 24];19(7):992-998. Available at: https://urn.nsk.hr/urn:nbn:hr:237:964803

Z. Wang, et al., "Sub-symmetry-protected topological states", Nature physics, vol. 19(7), pp. 992-998, 2023. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:237:964803. [Accessed: 24 December 2024]

Metadata
Title (english)Sub-symmetry-protected topological states
AuthorZiteng Wang
AuthorXiangdong Wang
AuthorZhichan Hu
AuthorDomenico Bongiovanni
AuthorDario Jukić
AuthorLiqin Tang
AuthorDaohong Song
AuthorRoberto Morandotti
AuthorZhigang Chen
AuthorHrvoje Buljan
Author's institutionUniversity of Zagreb
Faculty of Civil Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Civil Engineering
Abstract (english)
A hallmark of symmetry-protected topological phases are topological boundary states, which are immune to perturbations that respect the protecting symmetry. It is commonly believed that any perturbation that destroys such a topological phase simultaneously destroys the boundary states. However, by introducing and exploring a weaker sub-symmetry requirement on perturbations, we find that the nature of boundary state protection is in fact more complex. Here we demonstrate that the boundary states are protected by only the sub- symmetry, using Su–Schrieffer–Heeger and breathing kagome lattice models, even though the overall topological invariant and the associated topological phase can be destroyed by sub- symmetry-preserving perturbations. By precisely controlling symmetry breaking in photonic lattices, we experimentally demonstrate such sub- symmetry protection of topological states. Furthermore, we introduce a long-range hopping symmetry in breathing kagome lattices, which resolves a debate on the higher-order topological nature of their corner states. Our results apply beyond photonics and could be used to explore the properties of symmetry-protected topological phases in the absence of full symmetry in different physical contexts.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleNature physics
Numberingvol. 19(7), pp. 992-998
e-ISSN1745-2481
URN:NBNurn:nbn:hr:237:964803
Publication2023
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-09-05 05:42:36