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Marginal synchronization of spin‐wave amplitudes in a model for chaos in parallel pumping
Author(s) -
Krawiecki A.,
Sukiennicki A.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301716
Subject(s) - amplitude , physics , excited state , synchronization (alternating current) , chaotic , chaos (operating system) , parametric statistics , spin wave , spin (aerodynamics) , basis (linear algebra) , nonlinear system , statistical physics , quantum mechanics , mathematics , topology (electrical circuits) , computer science , statistics , geometry , computer security , combinatorics , artificial intelligence , ferromagnetism , thermodynamics
A model for chaos in high‐power parallel pumping is considered, based on nonlinear interactions of two groups of parametric spin wave pairs. If spin wave pairs within each group have identical damping, frequencies, and interaction coefficients with other pairs, all of them are excited in the chaotic regime and marginal synchronization of amplitudes of spin wave pairs belonging to the same group is observed. In the case of small differences between spin wave pairs only a low number of pairs from each group is excited. On the basis of this result, possible explanation of the origin of low dimensional chaos usually observed experimentally in parallel pumping is proposed.