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arXiv 1809.07757hep-thcond-mat.stat-mechcond-mat.str-elhep-latmath-phmath.MP
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低维自旋结构与精确对偶

Spin Structures and Exact Dualities in Low Dimensions

Djordje Radicevic

摘要:

本文导出了一维和二维空间中的精确格对偶的大网。有些对偶是众所周知的,而其他的,如二维玻色子-仿费米子对偶,是新的。该过程是系统的,独立于特定的哈密顿算子,并推广到更高的维度。一个重要的结果是证明了任意格点费米子理论中的自旋结构总是可以简单地定义为规范群为费米子数宇称的拓扑规范场。这一定义与自旋结构的其他预期性质一致,它激发了在副费米子理论中起同样作用的“副自旋结构”的引入。

英文摘要:

This paper derives a large web of exact lattice dualities in one and two spatial dimensions. Some of the dualities are well-known, while others, such as two-dimensional boson-parafermion dualities, are new. The procedure is systematic, independent of specific Hamiltonians, and generalizes to higher dimensions. One important result is a demonstration that spin structures in arbitrary lattice fermion theories can always be simply defined as topological gauge fields whose gauge group is the fermion number parity. This definition agrees with other expected properties of spin structures, and it motivates the introduction of "paraspin structures" that serve the same role in parafermion theories.

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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