Accurate long-range coefficients for two excited like isotope He atoms

He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3)

Jun-Yi Zhang, Z YAN, D Vrinceanu, J BABB, H Sadeghpour

    Research output: Contribution to journalArticleResearchpeer-review

    Abstract

    A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.
    Original languageEnglish
    Pages (from-to)12723-12731
    Number of pages9
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume76
    Issue number1
    Publication statusPublished - 2007

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    Hylleraas coordinates
    isotopes
    quadrupoles
    symmetry
    molecular interactions
    coefficients
    atoms
    potential energy
    wave functions
    formalism
    interactions

    Cite this

    @article{eb4e175667c74b36a8c1d2083cf0dab9,
    title = "Accurate long-range coefficients for two excited like isotope He atoms: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3)",
    abstract = "A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.",
    keywords = "Atomic physics, Isotopes, Molecular interactions, Van der Waals forces, Wave functions, Finite nuclear mass effects, Molecular symmetries, Variational wave functions, Helium",
    author = "Jun-Yi Zhang and Z YAN and D Vrinceanu and J BABB and H Sadeghpour",
    year = "2007",
    language = "English",
    volume = "76",
    pages = "12723--12731",
    journal = "Physical Review A",
    issn = "1050-2947",
    publisher = "American Physical Society",
    number = "1",

    }

    Accurate long-range coefficients for two excited like isotope He atoms : He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). / Zhang, Jun-Yi; YAN, Z; Vrinceanu, D; BABB, J; Sadeghpour, H.

    In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 76, No. 1, 2007, p. 12723-12731.

    Research output: Contribution to journalArticleResearchpeer-review

    TY - JOUR

    T1 - Accurate long-range coefficients for two excited like isotope He atoms

    T2 - He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3)

    AU - Zhang, Jun-Yi

    AU - YAN, Z

    AU - Vrinceanu, D

    AU - BABB, J

    AU - Sadeghpour, H

    PY - 2007

    Y1 - 2007

    N2 - A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.

    AB - A general formalism is used to express the long-range potential energies in inverse powers of the separation distance between two like atomic or molecular systems with P symmetries. The long-range molecular interaction coefficients are calculated for the molecular symmetries ?, ?, and ?, arising from the following interactions: He (2 P1) -He (2 P1), He (2 P1) -He (2 P3), and He (2 P3) -He (2 P3). The electric quadrupole-quadrupole term C5, the van der Waals (dispersion) term C6, and higher-order terms C8 and C10 are calculated ab initio using accurate variational wave functions in Hylleraas coordinates with finite nuclear mass effects. A comparison is made with previously published results where available. � 2007 The American Physical Society.

    KW - Atomic physics

    KW - Isotopes

    KW - Molecular interactions

    KW - Van der Waals forces

    KW - Wave functions

    KW - Finite nuclear mass effects

    KW - Molecular symmetries

    KW - Variational wave functions

    KW - Helium

    M3 - Article

    VL - 76

    SP - 12723

    EP - 12731

    JO - Physical Review A

    JF - Physical Review A

    SN - 1050-2947

    IS - 1

    ER -