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arXiv 0810.1195hep-th
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非对易Minkowski空间上的对偶协变量子场论

Duality covariant quantum field theory on noncommutative Minkowski space

Andre Fischer, Richard J. Szabo

摘要:

我们证明了定义在非对易Minkowski时空上的标量量子场论关于交换坐标和动量的UV/IR对偶是协变的。该证明基于背景电场中带电非对易标量场的适当共振展开,从而在耦合复二矩阵模型中有效地描述了场论。两个独立的矩阵自由度保证了场论的统一性和CT不变性。该形式描述了可重正化的Grosse-Wulkenhaar模型到Minkowski签名的解析延拓。

英文摘要:

We prove that a scalar quantum field theory defined on noncommutative Minkowski spacetime with noncommuting momentum coordinates is covariant with respect to the UV/IR duality which exchanges coordinates and momenta. The proof is based on suitable resonance expansions of charged noncommutative scalar fields in a background electric field, which yields an effective description of the field theory in terms of a coupled complex two-matrix model. The two independent matrix degrees of freedom ensure unitarity and manifest CT-invariance of the field theory. The formalism describes an analytic continuation of the renormalizable Grosse-Wulkenhaar models to Minkowski signature.

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