Resonating Hartree-Bogoliubov Theory for a Superconducting Fermion System with Large Quantum Fluctuations : Condensed Matter and Statistical Physics

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概要

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• We develop a general theory to describe a superconducting Fermion system with large quantum fluctuations. The theory is a direct extension of the resonating Hartree-Fock (HF) theory to the Hartree-Bogoliubov case including pair correlations. We start with an exact coherent state representation of a superconducting Fermion system on a special orthogonal group. A state with large quantum fluctuations is approximated by a superposition of non-orthogonal Hartree-Bogoliubov (HB) wave functions with different correlation structures. We obtain the variational equations to determine the coefficients of configuration mixing and the orbitals in the resonating HB wave functions.

• 理論物理学刊行会の論文
• 1991-06-25

著者

• FUKUTOME Hideo

  Department of Physics, Kyoto University

• Fukutome Hideo

  Department Of Physics Faculty Of Science Kyoto University

• Nishiyama Seiya

  Department of Physics, Faculty of Science, Kochi University

• Nishiyama Seiya

  Department Of Physics Faculty Of Science Kochi University

• NISHIYAMA Seiya

  Department of Physics,Kochi University

• FUKUTOME Hideo

  Department of Physics, Faculty of Science, Kyoto University

• FUKUTOME Hideo

  Department of Physics, Kyoto Unversity

• FUKUTOME Hideo

  Deoartment of Physics, Kyoto University

• NISHIYAMA Seiya

  Research Institute for Fundamental Physics, Kyoto University:Department of Physics, Kochi University

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