Spontaneous Symmetry Breaking and Propagating Hydrodynamic Wave in the Critical Region
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概要
- 論文の詳細を見る
Hydrodynamics is developed in the critical region of phase transition by noticing that the effect of spontaneous symmetry breaking must fully be taken into account there, where the symmetry breaking appearing locally above the critical temperature T_c increases its both coherence length and life time to infinity as temperature T approaches T_c. It is predicted that an energy density wave will finally be observed as we approach arbitrarily close to T_c from above. In magnets, only the diffusive excitation of local magnetization is expected if the observation takes place during a finite time which is much larger than the life time τSB of the local symmetry breaking above T_c. This situation of observation cannot be realized in the limit T⇾T_c since the life time τSB diverges in the same limit. On the other hand, if the time needed for the observation is less than the life time τSB specifically in the critical region, the alternative hydrodynamic excitation to be observed is an energy density wave.
- 社団法人日本物理学会の論文
- 1972-11-05
著者
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Matsuno Koichiro
Central Research Laboratories Nippon Electric Co. Ltd.
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Matsuno Koichiro
Central Research Laboratories Nippon Electric Company Lrd.
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