From micromagnetics to quantum spin chains: Quantization of breathers

Citation
Hb. Braun et N. Fettes, From micromagnetics to quantum spin chains: Quantization of breathers, J APPL PHYS, 85(8), 1999, pp. 5648-5650
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
85
Issue
8
Year of publication
1999
Part
2B
Pages
5648 - 5650
Database
ISI
SICI code
0021-8979(19990415)85:8<5648:FMTQSC>2.0.ZU;2-V
Abstract
Classical bound states of solitons ("breathers") in continuum spin chains a re semiclassically quantized via Berry's phase. Remarkably, our results at zone center and zone boundary as well as the whole continuum match the exac t Bethe ansatz result of the discrete, XYZ spin-1/2 chain with arbitrary an isotropies. (C) 1999 American Institute of Physics. [S0021-8979(99)75808-1] .