Browsing Geldart, Wally by Subject "Fermion systems"

Now showing items 1-3 of 3

  • Analytical structure of the wave-number-dependent susceptibility of many-fermion systems at low temperature and long wavelength. II 

    Geldart, D. J. W., and M. Rasolt. 1980. "Analytical structure of the wave-number-dependent susceptibility of many-fermion systems at low temperature and long wavelength. II." Physical Review B (Condensed Matter) 22(8): 4079-80. Copyright © 1980 American Physical Society.
    For pt.I see ibid., vol.15, p.1523 (1977). It is shown that the nonanalytic structure of the wave-number-dependent susceptibility noted by Geldart and Rasolt is not removed by including repeated particle-particle scattering

  • Exchange and correlation energy in a nonuniform fermion fluid 

    Rasolt, M., and D. J. W. Geldart. 1986. "Exchange and correlation energy in a nonuniform fermion fluid." Physical Review B (Condensed Matter) 34(2): 1325-8. Copyright © 1986 American Physical Society.
    Recent results for the surface energy of jelliumlike surfaces are investigated within the functional-density formalism. These results along with first-principles considerations support the contention that the first gradient ...

  • Fourth-order gradient contributions in extended Thomas-Fermi theory for noninteracting fermions at finite temperature 

    Geldart, D. J. W., and E. Sommer. 1985. "Fourth-order gradient contributions in extended Thomas-Fermi theory for noninteracting fermions at finite temperature." Physical Review B (Condensed Matter) 32(12): 7694-702. Copyright © 1985 American Physical Society.
    Nonlocal corrections to the free energy of a system of noninteracting fermions are considered within the framework of extended Thomas-Fermi theory. The density and temperature dependence of gradient corrections is given ...