Dynamics of Topological Vortices in Two-Dimensional Nonlinear Wave Systems.II.Numerical Simulations
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概要
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Dynamical behaviors of vortices of the two-dimensional Gross-Pitaevskii andHiggs equations are numerically investigated and are related to nonintegrability ofthe equations such as orbital instability and ergodicity. Two kinds of experiment aremade. (1 ) Collisions of the vortices are studied to show that the collisions are inelasticand produce the orbital instability. (2) Low Fourier modes are initially excited, andthe following phenomena are observed. At high energy state creation and annihilalion of the vortices take place and the orbits in the phase space are unstable. Furthermore, the kinetic energy is distributed to many Fourier modes. On the other hand, atlow energy state no vortex is excited and the properties of nonintegrability are notfound.
- 社団法人日本物理学会の論文
- 1986-11-15
著者
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Ishimori Yuji
Department Of Applied Mathematics And Physics Faculty Of Engineering Kyoto University
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MIYAMOTO Norichika
Department of Applied Mathematics and Physics,Faculty of Engineering,Kyoto University
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Miyamoto Norichika
Department Of Applied Mathematics And Physics Faculty Of Engineering Kyoto University
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