Energy density as a probe of band representations in photonic crystals
| Autor: | M Blanco de Paz, M A J Herrera, P Arroyo Huidobro, H Alaeian, M G Vergniory, B Bradlyn, G Giedke, A García-Etxarri, D Bercioux |
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| Přispěvatelé: | Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Eusko Jaurlaritza, Fundação para a Ciência e a Tecnologia (Portugal), Purdue University, Air Force Office of Scientific Research (US) |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of physics. Condensed matter : an Institute of Physics journal. 34(31) |
| ISSN: | 1361-648X 2020-1206 |
| Popis: | Topological quantum chemistry (TQC) has recently emerged as an instrumental tool to characterize the topological nature of both fermionic and bosonic band structures. TQC is based on the study of band representations and the localization of maximally localized Wannier functions. In this article, we study various two-dimensional photonic crystal structures analyzing their topological character through a combined study of TQC, their Wilson-loop (WL) spectra and the electromagnetic energy density. Our study demonstrates that the analysis of the spatial localization of the energy density complements the study of the topological properties in terms of the spectrum of the WL operator and TQC. The work of M A J H and D B is supported from Ministerio de Ciencia e Innovación (MICINN) through Project No. PID2020-120614GB-I00, and by the Transnational Common Laboratory Quantum–ChemPhys (D B). Additionally, M B P, G G, A G E, M G V and D B acknowledge Programa Red guipuzcoana de Ciencia, Tecnología e Innovación 2021, Grant No. 2021-CIEN-000070-01, Gipuzkoa Next, and the funding from the Basque Government’s IKUR initiative on Quantum technologies (Department of Education). M G V acknowledges the Spanish Ministerio de Ciencia e Innovacion (Grant PID2019-109905GB-C21). A G E and M B P acknowledge support from the Spanish Ministerio de Ciencia e Innovación (PID2019-109905GA-C2) and from Eusko Jaurlaritza (IT1164-19 and KK-2021/00082). P A H acknowledges funding from Fundacao para a Ciencia e a Tecnologia and Instituto de Telecomunicacoes under Project UIDB/50008/2020 and the CEEC Individual program with reference CEECIND/02947/2020. HA acknowledgesthe Purdue University Startup fund. The work of B B is supported by the Air Force Office of Scientific Research under Award Number FA9550-21-1-0131. |
| Databáze: | OpenAIRE |
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