同位旋非对称核物质性质与扩展的BHF方法(Ⅲ)HVH定理与费米能量

Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅲ ) HVH Theorem and Fermi Energy

在扩展的同位旋相关的Brueckner—Hartree—Fock理论框架内,在整个同位旋自由度范围内研究了质量算子的空穴线展开中不同等级近似下非对称核物质中Hugenholtz—Van Hove定理的满足程度,并计算了中子和质子的费米能量.结果表明为了使Hugenholtz-Van Hove定理达到令人满意的满足程度,需要同时考虑质量算子中的重排贡献和重正修正,从而指出了基态关联对于非对称核物质中单粒子性质的重要性.

Within the isospin dependent Extended Brueckner-Hartree-Fock framework, the Hugenholtz-Van Hove theorem in isospin asymmetric nuclear matter has been investigated and discussed for different orders of approximation made according to the truncation levels in the hole-line expansion of mass operator. The neutron and proton Fermi energies have been calculated. It is found that both the rearrangement contributions and renormalized corrections in the hole-line expansions of the neutron and proton mass operators are necessary for getting a satisfactory fulfillment of the Hugenholtz-Van Hove theorem, indicating the importance of ground state correlations to the single particle properties of asymmetric nuclear matter.