Cluster Expansion Technique in the Many-Fermion Systems. I

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概要

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• A new cluster expansion technique is developed for the calculation of the energy expectation value of the many-fermion systems with singular potentials. The wave function. which is studied in this paper, is of the form Ψ=<IIf>___(i,j)(r_<ij>)Σ__p(-1)^ pP{x(1,2)x(3,4)・・・・・・x(2N-1,2N), }which, in a special case, coincides with Jastrow wave function. The formula for the energy expectation value is written in terms of the complex cluster integrals. The method introduced in the derivation of this formula has an analogy to the classical cluster expansion method in the theory of an imperfect classical gas of multicomponents.

• 一般社団法人日本物理学会の論文
• 1960-12-25

著者

• Nakamura Ki-ichi

  Research Laboratory Nippon Electric Company

• NAKAMURA Ki-ichi

  Research Laboratory, Nippon Electric Company Limited

関連論文

• Inpurity Effect in Superconductors
• Cluster Expansion Technique in the Many-Fermion Systems. I

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