An SU(2) symmetry of the spin-1 BQ model with single ion anisotropy

Hijii, Keigo

We show that the spin-1 BQ model with single ion anisotropy has a nontrivial SU(2) symmetry. We can explain some degeneracies of excitation states on a ground state phase boundary between the XY2 phase and the Neel phase which were reported in previous numerical results.

Language	:	Japanese
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Meeting title	:	日本物理学会2011年秋季大会(物性)
Held date	:	2011/09
Location (city)	:	富山
Location (country)	:	日本
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Registration No. : BB20111446
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