On the Interaction between Elementary Excitations in Many-Boson System

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概要

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• On the basis of the new formalism of the collective description of a many-boson system developed in a previous paper, new creation and annihilation operators for elementary excitations are introduced. When the system is written in terms of these operators, every interaction term in the Hamiltonian gives finite results for physical quantities in contrast with the interaction in the old formalism. The roton-roton interaction is reinvestigated on the basis of the present formalism to obtain the effective coupling-constants in the same order of magnitude with experimental ones.

• 理論物理学刊行会の論文
• 1975-08-25

著者

• Kebukawa Takeji

  Department Of Physics College Of General Education Osaka University

• SUNAKAWA Shigenobu

  Department of Physics, College of General Education Osaka University

• YAMASAKI Shuichiro

  College of Bio-medical Technology,Osaka University

• SUNAGAWA Sigenobu

  Department of Physics, College of General Education Osaka University

• Sunakawa Sigenobu

  Department Of Nuclear Engineering Osaka University

• Yamasaki Shuichiro

  College Of Bio-medical Technology Osaka University

• Sunagawa Sigenobu

  Department Of Physics College Of General Education Osaka University

• KEBUKAWA Takeji

  Department of Physics, College of General Education Osaka University

• YAMASAKI Shuichiro

  Department of Physicsm, Osaka University

• YAMASAKI Shuichiro

  Department of Physics, College of General Education Osaka University:College of Bio-medical Technology, Osaka University

• YAMASAKI Shuichiro

  Department of Physics, College of General Education, Osaka University

関連論文

• Multi-Branch Structure of the Excitation Spectra in Liquid Helium II
• Reduced Model of Anderson-Hamiltonian. I : Exact Solutions in Field Theoretical Framework : Condensed Matter and Statistical Physics
• Excitation-Modes and Their Interactions in a Many-Boson System. I
• One-Dimensional Many Boson System. IV : Condensation and Excitation Energy
• Theory of ac Josephson Effect in Superfluid Helium
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• One-Dimensional Many Boson System.I : Exact Solution in Field Theoretical Form
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• Reduced Model of Anderson-Hamiltonian. II : Exact Spin Eigenstates : Condensed Matter and Statistical Physics
• One-Dimensional Many Boson System.II : Orthogonality of Eigenstates and Their Level Structure
• One-Dimensional Many Boson System.III : Unitary Transformation and Exactly Dressed Bose Particle
• Note on the Longitudinal and Scalar Photons
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