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arXiv 1408.4403cond-mat.stat-mechmath-phmath.MP
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单费米子和费米子对的$M_2$模型的Bethe可解性和超对称性

Bethe ansatz solvability and supersymmetry of the $M_2$ model of single fermions and pairs

Christian Hagendorf, Thessa B. Fokkema, Liza Huijse

摘要:

详细研究了一个具有排斥规则和格点$\mathcal N=2$超对称性的强相互作用费米子模型。确定了模型参数空间中的一个子流形,它是Bethe-anonymous可解的。讨论了这个流形与额外的所谓动力学超对称性的存在之间的关系。基态分析的帮助下的上同调技术,和他们的确切的有限大小的Bethe roots found.此外,通过分析和数值研究认为,该模型提供了一个晶格版本的$\mathcal N=1$超正弦戈登模型在一个特定的耦合,其中一个额外的$\mathcal N=(2,2)$超对称性是存在的。动态超对称性示出,以允许一个精确的确定模型的间隙标度函数。

英文摘要:

A detailed study of a model for strongly-interacting fermions with exclusion rules and lattice $\mathcal N=2$ supersymmetry is presented. A submanifold in the space of parameters of the model where it is Bethe-ansatz solvable is identified. The relation between this manifold and the existence of additional, so-called dynamic, supersymmetries is discussed. The ground states are analysed with the help of cohomology techniques, and their exact finite-size Bethe roots are found. Moreover, through analytical and numerical studies it is argued that the model provides a lattice version of the $\mathcal N=1$ super-sine-Gordon model at a particular coupling where an additional $\mathcal N=(2,2)$ supersymmetry is present. The dynamic supersymmetry is shown to allow an exact determination of the gap scaling function of the model.

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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