Time-Dependent Variational Approach to (1+1)-Dimensional Scalar-Field Solitons in Terms of Squeezed Coherent States : Nuclear Physics
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概要
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With the view of investigating quantum effects in (1+1)-dimensional scalar-field solitons, coupled equations for a soliton profile function and a background boson field are derived by the use of a squeezed coherent state and the time-dependent variational principle. These equations take the form of canonical equations of motion with the aid of canonicity conditions developed in the time-dependent Hartree-Fock theory. They also incorporate self-consistent higher order quantum corrections in the sense of the mean field theory. A method of heat-kernel expansion is developed to deal with the background field of static solitons. At the semi-classical level, this method can reproduce the mass corrections obtained by WKB method with respect to the sine-Gordon system and φ^4-model.
- 理論物理学刊行会の論文
- 1991-08-25
著者
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FUJIWARA Yoshikazu
Department of Physics, Kyoto University
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Fujiwara Yoshihisa
Department Of Physics Tokyo Institute Of Technology
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Tsue Yasuhiko
Department Of Physics Kyoto University
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Fujiwara Yoshikazu
Department Of Clinical Gene Therapy Osaka University Graduate School Of Medicine
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FUJIWARA Yoshikazu
School of Physics, University of Minnesota
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FUJIWARA Yoshikazu
Research Institute for Fandamental Physics, Kyoto University
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TSUE Yasuhiko
Departamento de Fisica,Universidade de Coimbra
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FUJIWARA Yoshikazu
Institute of Theoretical Physics, University of Regensburg : Department of Physics, Kyoto University
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