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Expontial splitting of bound states in a waveguide with a pair of distant windows

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00101856" target="_blank" >RIV/61389005:_____/04:00101856 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Expontial splitting of bound states in a waveguide with a pair of distant windows

  • Original language description

    We consider the Laplacian in a straight planar strip with Dirichlet boundary which has two Neumann 'windows' of the same length, the centres of which are 21 apart, and study the asymptotic behaviour of the discrete spectrum as 1 --> infinity. It is shownthat there are pairs of eigenvalues around each isolated eigenvalue of a single-window strip and their distances vanish exponentially in the limit 1 --> infinity. We derive an asymptotic expansion also in the case where a single window gives rise to a threshold resonance which the presence of the other window turns into a single isolated eigenvalue

  • Czech name

    Exponenciální rozštěpení vázaných stavů ve vlnovodu s dvojicí vzdálených oken

  • Czech description

    Uvažujeme Laplacián v rovném rovinném pásu s Dirichletovou okrajovou podmínkou a Neumannovou podmínkou na dvou oknech stejné délky, se středy ve vzdálenosti 2l. Studujeme asyptotické chování diskrétního spektra pro l --> nekonečna. Kolem každé izolovanévlastní hodnoty pásu s jedním oknem existují 2 vlastní hodnoty, jejichž vzdálenost exponenciálně klesá s l rostoucím do nekonečna. Je uvažován i případ prahové resonance

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BE - Theoretical physics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/IAA1048101" target="_blank" >IAA1048101: Quantum graphs and related systems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Physics

  • ISSN

    0305-4470

  • e-ISSN

  • Volume of the periodical

    37

  • Issue of the periodical within the volume

    10

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    18

  • Pages from-to

    3411-3428

  • UT code for WoS article

  • EID of the result in the Scopus database