Momentum Distribution and Ground-State Energy of Liquid ^4He at the Absolute Zero Temperature
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概要
- 論文の詳細を見る
In the scheme of the density and phase operator approach, the momentum distribution nk and the ground-state energy E_0 are obtained by employing the structure factor and the radial distribution function calculated by Chang and Campbell for the Morse dipole-dipole potential. The condensate fraction, the ratio of the occupation number of the single-particle zero-momentum state N_0/N amounts to 0.096. The momentum distribution diverges as k^<-1> in the low-wave number limit. The ground-state energy becomes E_0=-6.9NK at the mean density ρ_0=0.02185Å^<-3>.
- 理論物理学刊行会の論文
- 1980-11-25
著者
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Watanabe Yoiti
Department Of Physics College Of General Education Osaka University
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Nishiyama Toshiyuki
Department Of Physics Colleg Of General Education Osaka University
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NISHIYAMA Toshiyuki
Department of Physics, Colleg of General Education, Osaka University
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NISHIYAMA Toshiyuki
Department of Physics and Applied Mathematics Osaka Institute of Technology
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WATANABE Yoshiki
Department of Physics, University of Tokyo
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WATANABE Yoiti
Department of Physics, College of General Education Osaka University
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WATANABE Yoiti
Institure of Physics, College of General Education, Osaka University
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