长程相互作用模型的新自旋推广
New spin generalisation for long range interaction models
摘要:
我们研究了Calogero,Sutherland和限制Calogero自旋模型的自由度之间的新的相互作用。这些相互作用由李代数so(N)或sp(N)的生成元编码。我们找到了这些新模型的对称代数:Calogero模型的基于so(N)或sp(N)的半圈代数和其他两类模型的基于so(N)或sp(N)的Yangian代数。令人惊讶的是,这些对称性只发生在特定值的耦合常数。
英文摘要:
We study new interactions between degrees of freedom for Calogero, Sutherland and confined Calogero spin models. These interactions are encoded by the generators of the Lie algebra so(N) or sp(N). We find the symmetry algebras of these new models: the half-loop algebra based on so(N) or sp(N) for the Calogero models and the Yangian of so(N) or sp(N) for the two types of other models. Surprisingly, these symmetry occur only for a specific value of the coupling constant.
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