Engineering topics
Publications and source records attributed to Hirschfelder, J. O..
Coupled Schroedinger equations for diatomic molecules internal motion solved using best adiabatic approximation to obtain energy correction to Born-Oppenheimer method
Molecular theory, quantum mechanics, transport properties, perturbation theory, and related research
Hartree-Fock calculation for ground and first excited state of H2
Exchange perturbation theories applied to delta function model of molecular hydrogen ion, discussing EL-HAV second order energy at large internuclear separations
Degeneracy applications to partitioning perturbation theory - Part 2
General formalism of partitioning perturbation theory - Part 1
Primas and Rayleigh-Schrodinger formulations of perturbation theory compared
Electron exchange function calculated for ground state hydrogen atoms using variational methods
General coordinate sets for diagonalizing relative kinetic energy of N particle system
Degenerate and nondegenerate energy states and wave functions formulated by Rayleigh- Schroedinger perturbation theory
Coordinates for diagonalizing kinetic energy of particle system relative motion, discussing potential energy surface
Resolving perturbed wave functions into unperturbed Hamiltonians
Unperturbed Hamiltonian transformation applied to existing perturbation theories for exchange forces between atoms to obtain correct long range behavior
Separation of center of mass and rotational coordinates from N electron diatomic Schroedinger equation
Iterative solution of perturbation equations
Localized orbitals defined for arbitrary wave functions for atoms and molecules with even or odd number of electrons, noting positive trihydrogen ion
Delta functions use in extending domain of Laplacian operator in quantum mechanics
Ground state energies of HeH divalent ion, comparing perturbation calculation values with variation-perturbation technique