On the radiative contributions to the Van der Waals force

Autor: E. A. Power, S. Zienau
Rok vydání: 1957
Předmět:
Zdroj: Il Nuovo Cimento. 6:7-17
ISSN: 1827-6121
0029-6341
DOI: 10.1007/bf02827754
Popis: The effect of the electromagnetic interaction between two neutral atoms is important for large separations where the London potential proportional toR-6 is altered and becomes the Casimir-Polder potential varying asR-7. It is shown that the interaction energy, for all separations, may be computed in a relatively simple manner by quantum electrodynamics with the aid of a reduced Hamiltonian involving transverse quanta alone. This Hamiltonian function is justified by an appeal to the dipole approximation in the Lagrangian.
Databáze: OpenAIRE