Quantum-Mechanical Calculation of the Third Virial Coefficient of
- 15 May 1963
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 130 (4), 1426-1440
- https://doi.org/10.1103/physrev.130.1426
Abstract
Using the method of binary collisions, the third virial coefficient of at low temperatures is calculated for a potential consisting of an attractive square well and a repulsive core. The shape of this potential is chosen so as to optimize the fit of the second virial coefficient with experimental data. From a comparison of the results with the third virial data the existence of a three-body bound state is inferred. A binding energy of 0.26°K, calculated from the potential, brings the adjusted results and the experimental data into agreement.
Keywords
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