Original scientific paper

Energy States of Helium-4 Dimer

Srećko Kilić ; Faculty of Natural Science, University of Split, 21000 Split, Croatia
Tullio Persi ; Faculty of Civil Engineering, University of Rijeka, 52000 Rijeka, Croatia

Abstract

It is shown that the binding energy of helium-4 dimer for the same class of potentials depends on the set of potential parameters used. The existence of one excited vibrational state of the dimer, which is related to one node of the radial wave function, is also proved for all used potentials. Excited state energy is about (–0,3 mK) ⋅ k_B. The expectation value of the internuclear distance is about 49 Å in the ground state and 679 Å in the excited state.

Keywords

energy states; helium-4 dimer; internuclear distances

Hrčak ID:

132308

URI

https://hrcak.srce.hr/132308

Publication date:

1.12.1999.

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