FIZIKA A 7 (1998) 4, 187-192

size 38 kBsize 65 kB

THE EFFECTS OF RETARDED FORCES IN HELIUM DIATOMIC MOLECULES

SRE∆KO KILI∆

Faculty of Natural Science, University of Split, 21000 Split, Croatia

Received 26 October 1998; revised manuscript received 14 December 1998
Accepted 21 December 1998

The binding energies of helium-3 dimer, helium-4 dimer and 3He - 4He molecule in the state 1 1S - 1 1S are calculated using the standard variational procedure. It is shown that the binding energy depends on the retardation long-range potentials. The expectation value of the internuclear distance for each complex is also derived.

PACS numbers: 36.90.+f, 31.20.Di
UDC 538.94

Keywords: helium-3 dimer, helium-4 dimer, 3He - 4He molecule in the state 1 1S - 1 1S, binding energy, variational procedure, retardation long-range potentials

Copyright by The Croatian Physical Society
For problems or questions please contact fizika@fizika.hfd.hr