A Method of a Quasi-Linear Canonical Transformation for the Many-Body Problem. II : The Many-Boson Problem

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概要

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• We apply the method of quasi-linear canonical transformation proposed in a previous paper to the system of N interacting bosons, and we calculate the excitation energy for the dilute hard-sphere Bose gas. In our formulation the total number of the particles are exactly conserved in contrast with the Bogoliubov theory. There appears no logarithmic divergent term in the physical quantities which correspond to the self-energy operators Σ_<11> and Σ_<02> appearing in the method of Green's function.

• 理論物理学刊行会の論文
• 1969-05-25

著者

• Kanno Shokichi

  Institute Of Physics College Of General Education Osaka University

関連論文

• A New Approach to the Many-Boson Problem
• Free Energy of a Nonideal Boson Gas
• A Method of a Quasi-Linear Canonical Transformation for the Many-Body Problem. I
• A Method of a Quasi-Linear Canonical Transformation for the Many-Body Problem. II : The Many-Boson Problem
• Criterion for the Ferromagnetism of Hard-Sphere Fermi Liquid
• Thermodynamical Functions of a Dilute Hard-Sphere Bose Gas

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