Computer Studies of Ergodicity in Coupled Oscillators with Anharmonic Interaction
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概要
- 論文の詳細を見る
Computer studies are made of the long time behavior of the anharmonic lattice vibration, since the harmonic lattice is known not to have ergodicity. The system consists of N + 2 particles connected by springs which have linear as well as quadratic force terms. The equation of motion for this system is solved by means of a computer for the cases N = 4, and N = 8. Long time averages of the kinetic energy for each particle and the correlation between velocities of neighboring particles are examined with the expectation in mind that the establishment of equilibrium may be obtained in contrast to the case of the harmonic lattice. However, similar results as in the case of harmonic lattice are yielded in all the calculations, namely, the system of particles shows very little tendency toward the vanishing of the correlation between the velocities of the nearest neighbor particles.
- 社団法人日本物理学会の論文
- 1967-08-05
著者
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Saito Nobuhiko
Department Of Applied Physics School Of Science And Engineering Waseda University
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Hirooka Hajime
Department Of Applied Physics Waseda University
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Saito Nobuhiko
Department Of Applied Physics And Science And Engineering Research Institute Waseda University
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