Hard-sphere Bose gas: Self-consistent-field approximation
- 1 October 1975
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 12 (7), 2640-2643
- https://doi.org/10.1103/physrevb.12.2640
Abstract
The elementary excitation spectrum of a hard-sphere Bose gas is calculated based on the self-consistent-field approximation. The hard-core diameter is left as an adjustable parameter of the theory. The results are in fairly good agreement with the experimental data for liquid helium.Keywords
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