Unification of Brueckner Theory and HFB Theory
نویسندگان
چکیده
The usual approach to the Brueckner theory is to derive the expression for the ground-state energy of a many-particle system from perturbation theory. B y a partial summation of Goldstone diagrams, the Bethe-Goldstone equation defining the Brueckner twro-body G-matrix is obtained. A refined version of the Brueckner theory [1] uses true occupation probabilities for single particle levels. Da Providencia and Shakin employed a variational approach to the Brueckner theory [2], using a correlated wrave function of the following f o rm:
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