Period Stabilization in the Busse-Heikes Model of the Kuppers-Lortz In...
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Period Stabilization in the Busse-Heikes Model of the Kuppers-Lortz Instability
Toral, R; San Miguel, M; Gallego, R.
Physica A 280, 315-336 (2000)
The Busse-Heikes dynamical model is described in terms of relaxational and nonrelaxational dynamics. Within this dynamical picture a diverging alternating period is calculated in a reduced dynamics given by a time-dependent Hamiltonian with decreasing energy. A mean period is calculated which results from noise stabilization of a mean energy. The consideration of spatial-dependent amplitudes leads to vertex formation. The competition of front motion around the vertices and the Kuppers-Lortz instability in determining an alternating period is discussed.
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