Abstract
The problem of the stability of usual Hartree-Fock calculations of neutron matter with effective two-body interactions is investigated by using the second order variational equations. Sufficient conditions for instability are derived, which can be checked easily for a given effective potential. Numerical calculations are performed and neutron matter is found to be unstable against density fluctuations.
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The author would like to thank Prof. P. Mittelstaedt for stimulating and helpful discussions and the “Bundesministerium für Wissenschaft und Forschung” for financial support.
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Hillebrandt, W. On the stability of neutron matter calculations. Z. Physik 264, 321–330 (1973). https://doi.org/10.1007/BF01398858
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DOI: https://doi.org/10.1007/BF01398858