Anomalies of duality groups and extended conformal manifolds

Anomalies of duality groups and extended conformal manifolds
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对偶群和扩展共形流形的异常

DOI:
10.1093/ptep/pty069
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发表时间:
2018
影响因子:
3.5
通讯作者:
Kazuya Yonekura
Kazuya Yonekura
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
Nathan Seiberg;Yuji Tachikawa;Kazuya Yonekura

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量子场论中的自对偶群可能有反常现象。在这种情况下,普通耦合常数的空间可以扩展到包括背景场中的反项系数的空间。扩张空间在纤维上形成一个丛,丛的拓扑由反常决定。例如,4D麦克斯韦理论的对偶性有一个异常,引力θ角的空间被非平凡地纤维化。我们将解释一个简单的方法来确定异常时,4D理论是通过紧化的6D理论在黎曼曲面上的父6D理论的异常多项式。我们的观察解决了一个明显的矛盾与全球结构的凯勒潜力的空间上的精确边际耦合的超对称理论。
A self-duality groupin quantum field theory can have anomalies. In that case, the space of ordinary coupling constantscan be extended to include the spaceof coefficients of counterterms in background fields. The extended spaceforms a bundle overwith fiber, and the topology of the bundle is determined by the anomaly. For example, theduality of the 4D Maxwell theory has an anomaly, and the spacefor the gravitational theta angle is nontrivially fibered over. We will explain a simple method to determine the anomaly when the 4D theory is obtained by compactifying a 6D theory on a Riemann surface in terms of the anomaly polynomial of the parent 6D theory. Our observations resolve an apparent contradiction associated with the global structure of the Kähler potential on the space of exactly marginal couplings of supersymmetric theories.
DOI: --
发表时间: 1990
期刊:
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