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arXiv 0807.3197math-phmath.MP
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量子逆散射方法中的任意子分级

Quantum Inverse Scattering Method with anyonic grading

M T Batchelor, A Foerster, X-W Guan, J Links, H-Q Zhou

摘要:

我们制定了量子逆散射方法的情况下,任意分次。这提供了一个一般的框架,用于构建描述相互作用的硬核任意子的可积模型。通过这种方法,我们重建了与XXX模型相关的硬核任意子的可积模型,并作为一个新的应用,我们构造了任意子$t-J$模型。每个模型的能量谱是通过代数贝特变换的推广而得到的。实现任意子签名的分级参数在贝特方程中产生扇区相关的相位因子。

英文摘要:

We formulate the Quantum Inverse Scattering Method for the case of anyonic grading. This provides a general framework for constructing integrable models describing interacting hard-core anyons. Through this method we reconstruct the known integrable model of hard core anyons associated with the XXX model, and as a new application we construct the anyonic $t-J$ model. The energy spectrum for each model is derived by means of a generalisation of the algebraic Bethe ansatz. The grading parameters implementing the anyonic signature give rise to sector-dependent phase factors in the Bethe ansatz equations.

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