On the existence of bound helium trimers by the equivalent two-body method
- 1 September 1975
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 63 (5) , 2245-2248
- https://doi.org/10.1063/1.431609
Abstract
The binding energies of the 3,4He trimers are computed for a range of realistic interatomic potentials using the equivalent two‐body method of Bodmer and Ali. We find a 4He trimer bound with a binding energy of about 0.25°K and a 3He trimer which is but loosely bound. We also confirm that the Hall–Post–Stenschke method gives poor lower bounds to the energy and that (4He)3 is large, having a root mean square interparticle spacing of 23 Å.Keywords
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