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arXiv 1401.7624math-phcond-mat.stat-mechhep-thmath.COmath.MP
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XX0海森堡链的关联函数、q-二项式行列式和随机游动

Correlation Functions of XX0 Heisenberg Chain, q-Binomial Determinants, and Random Walks

N. M. Bogoliubov, C. Malyshev

摘要:

研究了环链上XX 0海森堡模型。Bethe波函数通过Schur函数的表示允许将发展良好的对称函数理论应用于热关联函数的计算。得到了形状因子和热关联函数的行列式表达式。q-二项行列式使连接的形式因素与生成函数的装箱平面分区和自避免格路径。在系统特征参数足够大的条件下,研究了低温极限下热关联函数的渐近行为。

英文摘要:

The XX0 Heisenberg model on a cyclic chain is considered. The representation of the Bethe wave functions via the Schur functions allows to apply the well-developed theory of the symmetric functions to the calculation of the thermal correlation functions. The determinantal expressions of the form-factors and of the thermal correlation functions are obtained. The q-binomial determinants enable the connection of the form-factors with the generating functions both of boxed plane partitions and of self-avoiding lattice paths. The asymptotical behavior of the thermal correlation functions is studied in the limit of low temperature provided that the characteristic parameters of the system are large enough.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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