Essays about: "VAMPIR"

Found 1 essay containing the word VAMPIR.

  1. 1. Excited States in Variational Many-Body Approaches

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : David Gustafsson; [2018]
    Keywords : quantum mechanics; many-body problems; excited states; Hartree-Fock method; variational method; VAMPIR; Physics and Astronomy;

    Abstract : A method is implemented wherein numerical approximations to the ground and first few excited states of a quantum mechanical N -body 1D harmonic oscillator are found through variational methods, representing the states as a linear combination of normalized pseudo-states which are themselves linear combinations of non-orthogonal Slater determinants. These states are then used as a low energy basis for configuration interaction. READ MORE