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arXiv 1108.4013hep-th
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单极算子、模空间与对偶

Monopole operators, moduli spaces and dualities

David Berenstein, Mauricio Romo

摘要:

我们发展了半经典方法来分析N=2的三维超共形场论的BPS算符的谱。我们表明,手征环的理论结果从半经典全纯量子化的经典BPS运动方程的解决方案的圆柱。我们将这种形式主义应用于各种理论。我们还使用这些技术来比较手征环的理论,可能是相互关联的,通过塞伯格对偶在四维空间。我们发现,在四维(同调运算)中产生对偶的基础变换的变化一般不适用于存在陈-西蒙斯项的三维。相反,新的理论通常是这样产生的。当对偶是可能的,陈-西蒙斯耦合需要满足一定的算术同余。我们还确定了频谱的手征环运营商的R-收费组装它们的希尔伯特级数和最小化的最大极点相对于审判R-收费的系数。这与双超重力理论中的体积最小化有关。

英文摘要:

We develop semiclassical methods to analyze the spectrum of BPS monopole operators for superconformal field theories in three dimensions with N=2 supersymmetry. We show that the chiral ring of the theory results from the semiclassical holomorphic quantization of the solution of classical BPS equations of motion on the cylinder. We apply this formalism to various theories. We also use these techniques to compare the chiral rings of theories that might be related to each other via Seiberg dualities in four dimensions. We find that the change of basis transformations that generate dualities in four dimensions (homological operations) generically do not work in three dimensions in the presence of Chern-Simons terms. Instead, new theories generally arise this way. When dualities are possible, the Chern-Simons couplings need to satisfy certain arithmetic congruences. We also determine the spectrum of R-charges of the chiral ring operators by assembling them on a Hilbert series and by minimizing the coefficient of the maximum pole relative to the trial R-charge. This is related to volume minimization in theories with dual supergravity setups.

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