Critical Slowing Down in the Kinetic Ising Model
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概要
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A simple dynamical model of interacting Ising spins is discussed near the critical point. It is shown that all the moments are positive and never vanish even at the critical point. Lower and upper bounds of the susceptibility are obtained, which yield the non-vanishing of the real part of the susceptibility. This gives a simple proof for the poly-dispersive nature of our system. The method of high temperature expansions for the dynamical susceptibility is presented and is applied to the two-dimensional Ising model up to the ninth order, the results of which show that the critical index of slowing down (the relaxation time τ^<(1)>∝(T-T_c)^<-Δ>;=Δ2±0.05 is different from that of the static susceptibility.
- 社団法人日本物理学会の論文
- 1969-12-05
著者
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YAHATA Hideo
Department of Materials Science, Faculty of Science, Hiroshima University
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Yahata Hideo
Department Of Materials Science Faculty Of Science
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SUZUKI Masuo
The Institute for Solid State Physics, University of Tokyo
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Suzuki Masuo
The Institute For Solid State Physics University Of Tokyo
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Suzuki Masuo
The Institute For Solid State Physics The University Of Tokyo
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Yahata Hideo
Department of Physics, Faculty of Science, University of Tokyo
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YAHATA Hideo
Department of Materials Science ,Faculty of Science,Hiroshima University
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