Open AccessEffectivity of Hamiltonian terms of "forbidden" 3-magnon interaction
Author(s) -
Qingfan Shi,
Liangsheng Li,
Zhang Mei
Publication year - 2004
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3916
Subject(s) - magnon , hamiltonian (control theory) , physics , quantum mechanics , theoretical physics , mathematics , ferromagnetism , mathematical optimization
Analyzing the effectivity of "forbidden" 3-magnon processes locally excitated in magneto-ordered crystals, we successfully constructed the corresponding effe ctive 4-magnon interaction terms by the unitary transformations.
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