Browsing Geldart, Wally by Author "Gumbs, G."

Now showing items 1-5 of 5

  • Convergence properties as a function of spatial dimensionality of gradient expansions for the ground-state energy of an inhomogeneous electron gas 

    Geldart, D. J. W., and G. Gumbs. 1986. "Convergence properties as a function of spatial dimensionality of gradient expansions for the ground-state energy of an inhomogeneous electron gas." Physical Review B (Condensed Matter) 33(4): 2820-3. Copyright © 1986 American Physical Society.
    The extended Thomas-Fermi approximation for the ground-state energy of a many-fermion system is generalized to arbitrary spatial dimension. The authors' objective is a better understanding of convergence properties of such ...

  • Depth-dependent static shielding of an impurity by a quantum plasma in a magnetic field 

    Gumbs, G., and D. J. W. Geldart. 1984. "Depth-dependent static shielding of an impurity by a quantum plasma in a magnetic field." Physical Review B (Condensed Matter) 29(10): 5445-57. Copyright © 1984 American Physical Society.
    The static shielding of a charged impurity embedded in a quantum plasma is studied with the use of linear-response theory. The required response function is calculated in the random-phase approximation with a uniform ...

  • Linear-response function of a semi-infinite degenerate plasma in the presence of an external magnetic field 

    Glasser, M. L., D. J. W. Geldart, and G. Gumbs. 1984. "Linear-response function of a semi-infinite degenerate plasma in the presence of an external magnetic field." Physical Review B (Condensed Matter) 29(12): 6468-73. Copyright © 1984 American Physical Society.
    The static linear-response function x0(r,r') of a semi-infinite, degenerate plasma of noninteracting electrons is calculated in the presence of an external magnetic field perpendicular to the surface. The surface is simulated ...

  • Nonlocal exchange energy of many-fermion systems of arbitrary dimensionality and interparticle interaction 

    Gumbs, G., and D. J. W. Geldart. 1986. "Nonlocal exchange energy of many-fermion systems of arbitrary dimensionality and interparticle interaction." Physical Review B (Condensed Matter) 34(10): 6847-52. Copyright © 1986 American Physical Society.
    The exchange contributions to the ground-state energy of an inhomogeneous many-fermion system of arbitrary dimensionality are calculated. Explicit results are given for both the local-density approximation and the lowest-order ...

  • Surface-induced quantum density oscillations in the presence of an external magnetic field 

    Geldart, D. J. W., G. Gumbs, and M. L. Glasser. 1985. "Surface-induced quantum density oscillations in the presence of an external magnetic field." Physical Review B (Condensed Matter) 31(6): 3315-22. Copyright © 1985 American Physical Society.
    The electron number density and spin density near the surface of a model metal, semimetal, or semiconductor are calculated in the presence of a uniform magnetic field. The magnetic field is applied in a direction perpendicular ...