Guangwei Hu

Dec 19, 2024 | science.org | Guoqiang Xu |Xue Zhou |Weijin Chen |Guangwei Hu |Zhiyuan Yan |Zhipeng Li | +2 more

Published In ScienceVolume 386 | Issue 672820 December 2024Article versionsSubmission historyReceived: 5 May 2024Accepted: 4 November 2024Published in print: 20 December 2024PermissionsRequest permissions for this article. AcknowledgmentsFunding: This work was funded by the Ministry of Education, Republic of Singapore Ministry of Education, grant no.

Aug 29, 2024 | dialnet.unirioja.es | Qian Wang |Guangwei Hu

Ayuda Buscar en la ayuda Buscar en la ayuda Expressions of interest in research articles: Geo-academic location and time as influencing factors Qian Wang [1] ; Guangwei Hu [2] [1] School of Foreign Studies, Northwestern Polytechnical University [2] Department of English and Communication, The Hong Kong Polytechnic University Localización: Lingua: International review of general linguistics, ISSN 0024-3841, Nº 293, 2023 Idioma: inglés Enlaces Texto completo Resumen Linguistic expressions of...

Jun 8, 2023 | link.aps.org | Mengqi Liu |Shanghai Jiao Tong |Weijin Chen |Guangwei Hu

Abstract Perfect absorbers, which can achieve total absorption of all incoming energy, have been extensively studied in the last decades for various important technologies in general wave systems. Here, we show that perfect absorption (PA) is generically associated with topological spectral phase singularity (SPS), carrying conserved and tunable quantized topological invariants in spectral space. The order of topological invariant ṽ depends on the number of degenerate outgoing channels.