File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Quantum superposition demonstrated higher-order topological bound states in the continuum

TitleQuantum superposition demonstrated higher-order topological bound states in the continuum
Authors
Issue Date2021
PublisherNature Publishing Group: Open Access Journals. The Journal's web site is located at http://www.nature.com/lsa/index.html
Citation
Light: Science & Applications, 2021, v. 10 n. 1, p. article no. 173 How to Cite?
AbstractHigher-order topological insulators, as newly found non-trivial materials and structures, possess topological phases beyond the conventional bulk-boundary correspondence. In previous studies, in-gap boundary states such as the corner states were regarded as conclusive evidence for the emergence of higher-order topological insulators. Here, we present an experimental observation of a photonic higher-order topological insulator with corner states embedded into the bulk spectrum, denoted as the higher-order topological bound states in the continuum. Especially, we propose and experimentally demonstrate a new way to identify topological corner states by exciting them separately from the bulk states with photonic quantum superposition states. Our results extend the topological bound states in the continuum into higher-order cases, providing an unprecedented mechanism to achieve robust and localized states in a bulk spectrum. More importantly, our experiments exhibit the advantage of using the time evolution of quantum superposition states to identify topological corner modes, which may shed light on future exploration between quantum dynamics and higher-order topological photonics.
Persistent Identifierhttp://hdl.handle.net/10722/303998
ISSN
2023 Impact Factor: 20.6
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWang, Y-
dc.contributor.authorXie, BY-
dc.contributor.authorLu, YH-
dc.contributor.authorChang, YJ-
dc.contributor.authorWang, HF-
dc.contributor.authorGao, J-
dc.contributor.authorJiao, ZQ-
dc.contributor.authorFeng, Z-
dc.contributor.authorXu, XY-
dc.contributor.authorMei, F-
dc.contributor.authorJia, S-
dc.contributor.authorLu, MH-
dc.contributor.authorJin, XM-
dc.date.accessioned2021-09-23T08:53:48Z-
dc.date.available2021-09-23T08:53:48Z-
dc.date.issued2021-
dc.identifier.citationLight: Science & Applications, 2021, v. 10 n. 1, p. article no. 173-
dc.identifier.issn2095-5545-
dc.identifier.urihttp://hdl.handle.net/10722/303998-
dc.description.abstractHigher-order topological insulators, as newly found non-trivial materials and structures, possess topological phases beyond the conventional bulk-boundary correspondence. In previous studies, in-gap boundary states such as the corner states were regarded as conclusive evidence for the emergence of higher-order topological insulators. Here, we present an experimental observation of a photonic higher-order topological insulator with corner states embedded into the bulk spectrum, denoted as the higher-order topological bound states in the continuum. Especially, we propose and experimentally demonstrate a new way to identify topological corner states by exciting them separately from the bulk states with photonic quantum superposition states. Our results extend the topological bound states in the continuum into higher-order cases, providing an unprecedented mechanism to achieve robust and localized states in a bulk spectrum. More importantly, our experiments exhibit the advantage of using the time evolution of quantum superposition states to identify topological corner modes, which may shed light on future exploration between quantum dynamics and higher-order topological photonics.-
dc.languageeng-
dc.publisherNature Publishing Group: Open Access Journals. The Journal's web site is located at http://www.nature.com/lsa/index.html-
dc.relation.ispartofLight: Science & Applications-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleQuantum superposition demonstrated higher-order topological bound states in the continuum-
dc.typeArticle-
dc.identifier.emailXie, BY: biye1993@hku.hk-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1038/s41377-021-00612-8-
dc.identifier.pmid34462419-
dc.identifier.pmcidPMC8405621-
dc.identifier.scopuseid_2-s2.0-85113885599-
dc.identifier.hkuros325599-
dc.identifier.volume10-
dc.identifier.issue1-
dc.identifier.spagearticle no. 173-
dc.identifier.epagearticle no. 173-
dc.identifier.isiWOS:000692408100001-
dc.publisher.placeUnited Kingdom-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats