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Momentum density interpretation of the H(1 s )–H + long‐range force
Author(s) -
Koga Toshikatsu
Publication year - 1984
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/qua.560250207
Subject(s) - position and momentum space , momentum (technical analysis) , range (aeronautics) , position (finance) , atomic physics , physics , interpretation (philosophy) , atom (system on chip) , proton , space (punctuation) , hydrogen atom , ground state , chemistry , quantum mechanics , group (periodic table) , materials science , linguistics , philosophy , finance , computer science , embedded system , economics , composite material , programming language
The recently proposed method of using momentum densities for interatomic interactions is applied to the long‐range force between the ground‐state hydrogen atom and the proton, and the results are compared with those from using the position density based on the electrostatic Hellmann–Feynaman theorem. A new physical interpretation of the long‐range force is obtained, which is complementary to that in position space. It is found that some perturbative changes in the position density do not accompany changes in the momentum density.