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Resonances from perturbations of quantum graphs with rationally related edges
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SYSNO ASEP 0342751 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Resonances from perturbations of quantum graphs with rationally related edges Author(s) Exner, Pavel (UJF-V) RID, ORCID, SAI
Lipovský, Jiří (UJF-V)Source Title Journal of Physics A-Mathematical and Theoretical. - : Institute of Physics Publishing - ISSN 1751-8113
Roč. 43, č. 10 (2010), 105301/1-105301/21Number of pages 21 s. Language eng - English Country GB - United Kingdom Keywords quantum graphs ; resonances ; analyze Subject RIV BE - Theoretical Physics R&D Projects LC06002 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10480505 - UJF-V (2005-2011) UT WOS 000274800900012 DOI 10.1088/1751-8113/43/10/105301 Annotation We discuss quantum graphs consisting of a compact part and semi-infinite leads. Such a system may have embedded eigenvalues if some edge lengths in the compact part are rationally related. If such a relation is perturbed, these eigenvalues may turn into resonances; we analyze this effect both generally and in simple examples. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2011
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