Premium
Hellmann‐Feynman forces on and between jellia
Author(s) -
Lehmann D.,
Ziesche P.
Publication year - 1986
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221350224
Subject(s) - jellium , pauli exclusion principle , physics , feynman diagram , torque , classical mechanics , total energy , quantum electrodynamics , quantum mechanics , electron , psychology , displacement (psychology) , psychotherapist
Force and torque on a finite jellium in an external field or near another jellium — defined via changes of the total energy – are according to the Pauli‐Hellmann‐Feynman theorem expressed by the mean electrostatic potential. Force and torque sum rules following from the Ehrenfest theorem and electrostatics are included into the discussion. For cavities similar relations are valid. An example for the interaction of two jellia is the cleavage of a jellium. Special cases are considered. The cleavage force is simply related to the pressure.