Topological Actions in Two-Dimensional Quantum Field Thories

Topological Actions in Two-Dimensional Quantum Field Thories
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二维量子场论中的拓扑行为

DOI:
10.1007/978-1-4613-0729-7_5
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发表时间:
1988
影响因子:
1.2
通讯作者:
K. Gawȩdzki
K. Gawȩdzki
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
K. Gawȩdzki

文献摘要

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利用Deligne上同调作为一种数学工具,提出了一种系统的二维量子场论的研究方法。作为一个应用,展示了如何玻色散化任意自旋的自由费米子在黎曼曲面上的作用,以及如何求出Wess-Zumino-Witten模型的谱而不递归到模不变。
A systematic approach to 2-dimensional quantum field theories with to pological terms in the action is developed using as a mathematical tool the Deligne cohomology. As an application,it is shown how to bosonize the action of free fermions of arbitrary spin on a Riemann surface and how to find the spectrum of the Wess-Zumino-Witten sigma models without recurrence to modular invariance.