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  • High-frequency hydrodynamics and Thomas-Fermi theory

    Author(s)
    Dobson, JF
    Le, HM
    Griffith University Author(s)
    Dobson, John F.
    Le, Hung
    Year published
    2000
    Metadata
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    Abstract
    We discuss a new form of high-frequency hydrodynamics suitable for plasmon calculations in inhomogeneous systems. The theory naturally ensures the use of low- and high-frequency pressure coefficients in the appropriate limits: in particular it correctly brings in the low-frequency coefficient for rigid Kohn motion of parabolically confined systems. As an example we obtain both the Kohn mode and the correctly spaced standing plasmons of a parabolic quantum well. This is achieved starting from a smooth inhomogeneous self-consistent Thomas-Fermi groundstate density for the parabolic well. As a result neither arbitrary boundary ...
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    We discuss a new form of high-frequency hydrodynamics suitable for plasmon calculations in inhomogeneous systems. The theory naturally ensures the use of low- and high-frequency pressure coefficients in the appropriate limits: in particular it correctly brings in the low-frequency coefficient for rigid Kohn motion of parabolically confined systems. As an example we obtain both the Kohn mode and the correctly spaced standing plasmons of a parabolic quantum well. This is achieved starting from a smooth inhomogeneous self-consistent Thomas-Fermi groundstate density for the parabolic well. As a result neither arbitrary boundary conditions nor special system-specific assumptions are required for the hydrodynamic description.
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    Journal Title
    Journal of Molecular Structure: Theochem
    Volume
    501-502
    Publisher URI
    https://www.sciencedirect.com/science/article/pii/S0166128099004431
    Copyright Statement
    © 2000 Elsevier : Reproduced in accordance with the copyright policy of the publisher : This journal is available online - use hypertext links.
    Subject
    Physical chemistry
    Theoretical and computational chemistry
    History, heritage and archaeology
    Publication URI
    http://hdl.handle.net/10072/3189
    Collection
    • Journal articles

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