New Self-Consistent Approach to Spin Dynamics at High Temperatures
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概要
- 論文の詳細を見る
The integro-differential equation of the Resibois-De Leener type is reformulated generally from the moment expansion of correlation functions, with the memory function expressible in terms of irreducible moments. The formulation leads one immediately to the hierarchy of equations. the similarity relations between the memory functions of different ranks are Heisenberg system in the high temperature limit. A self-consistent equation resulting from the above similarity law reduces to the Riccati equation whose solution is studied with full details. The correlation function and its spectrum are also studied, without any violation of the analytical property required for the solution. It is pointed out that the background modes consisting of continuously distributed relaxation-times is predicted to be superposed on the discrete relaxation modes.
- 理論物理学刊行会の論文
- 1976-10-25
著者
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Nakamura Tuto
Department Of Material Physics Faculty Of Engineering Science Osaka University
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NAGAO Naruichi
Department of Material Physics, Faculty of Engineering Science Osaka University
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Nagao Naruichi
Department Of Material Physics Faculty Of Engineering Science Osaka University
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