| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1587 - C8-1588 | |
| DOI | https://doi.org/10.1051/jphyscol:19888726 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1587-C8-1588
DOI: 10.1051/jphyscol:19888726
Department of Physics, Polytechnic University, 333 Jay Street, Brooklyn, New York 11201, U.S.A.
J. Phys. Colloques 49 (1988) C8-1587-C8-1588
DOI: 10.1051/jphyscol:19888726
QUANTIZED BREATHERS IN A DOUBLE SINE-GORDON SYSTEM
Qing Xia et P. S. RiseboroughDepartment of Physics, Polytechnic University, 333 Jay Street, Brooklyn, New York 11201, U.S.A.
Abstract
We examine the excitations of a quasi-one dimensional easy plane antiferromagnet, in a symmetry breaking applied magnetic field. The antiferromagnetic exchange includes a small Dzyaloshinski Moriya component that produces the easy plane. In the classical continuum limit, this system is described by a double-sine-Gordon field theory, which supports soliton excitations and the multi spin wave bound states/resonances of the discrete spin system. The latter correspond to the quantized breather excitations of the double sine Gordon field theory.