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arXiv math-ph/0305058math-phcond-mathep-thmath.MP
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格点U(N)Yang-Mills理论诱导模型的Howe对偶

Howe Duality for an Induced Model of Lattice U(N) Yang-Mills Theory

J. Budczies, M. R. Zirnbauer

摘要:

我们提出了一种把U(N_c)Yang-Mills理论看作格点上诱导规范模型临界点的方法。最近基于色味变换的类似建议依赖于无限数量的无限重粒子的极限。相反,我们将有限个N_b的辅助玻色子味耦合到规范场上,并论证了当N_b超过N_c且玻色子质量降低到临界点时,杨-米尔斯理论被诱导。利用Howe对偶的概念,我们将诱导规范模型转化为局部规范不变变量的对偶形式。在阿贝尔情形下,从弱耦合U(1)_{d=4}到强耦合Z_{d=4}格点规范理论,Howe对偶变换与标准对偶变换是一致的。

英文摘要:

We propose an approach that views U(N_c) Yang-Mills theory as the critical point of an induced gauge model on the lattice. Similar recent proposals based on the color-flavor transformation rely on taking the limit of an infinite number of infinitely heavy particles. In contrast, we couple a finite number N_b of auxiliary boson flavors to the gauge field and argue that Yang-Mills theory is induced when N_b exceeds N_c and the boson mass is lowered to a critical point. Using the notion of Howe duality we transform the induced gauge model to a dual formulation in terms of local gauge invariant variables. In the abelian case the Howe duality transform turns out to coincide with the standard one, taking weakly coupled U(1)_{d=4} to strongly coupled Z_{d=4} lattice gauge theory.

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