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Bound states in the continuum in a two-channel Fano-Anderson model
Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110 V, Valparaiso, Chile..
Univ Antofagasta, Dept Fis, Ave Angamos 601,Casilla 170, Antofagasta, Chile..
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110 V, Valparaiso, Chile..ORCID iD: 0000-0002-3000-5393
Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110 V, Valparaiso, Chile..
2022 (English)In: Physical Review A: covering atomic, molecular, and optical physics and quantum information, ISSN 2469-9926, E-ISSN 2469-9934, Vol. 106, no 1, article id 013719Article in journal (Refereed) Published
Abstract [en]

In this article, we study the formation of the bound states in the continuum (BICs) in a two-channel Fano-Anderson model. We employ the Green's function formalism, together with the equation of motion method, to analyze the relevant observables, such as the transmission coefficient and the density of states. Most importantly, our results show that the system hosts true BICs for the case of a symmetric configuration with degenerate impurity levels, and a complete transmission channel is then suppressed. Finally, we argue that the proposed mechanism could be relevant for the realization of BICs in electronic and photonic systems.

Place, publisher, year, edition, pages
American Physical Society (APS) , 2022. Vol. 106, no 1, article id 013719
National Category
Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-316445DOI: 10.1103/PhysRevA.106.013719ISI: 000835307900008Scopus ID: 2-s2.0-85135607610OAI: oai:DiVA.org:kth-316445DiVA, id: diva2:1688275
Note

QC 20220818

Available from: 2022-08-18 Created: 2022-08-18 Last updated: 2022-08-18Bibliographically approved

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Juričić, Vladimir

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