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arXiv 2104.00657hep-th
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Grosse-Wulkenhaar模型phase diagram中的重整化足迹

Renormalization footprints in the phase diagram of the Grosse-Wulkenhaar model

Dragan Prekrat

摘要:

我们构造并分析了二维自相互作用矩阵场与非对易截断海森堡空间曲率耦合的相图。在无限大的尺寸限制下,该模型简化为可重正化的Grosse-Wulkenhaar。曲率项对图的结构至关重要:当关闭时,随着矩阵变大,三相点坍缩到原点;当打开时,三相点与耦合强度和矩阵大小成比例地从原点后退。将Grosse-Wulkenhaar模型转化为$ϕ^4_\star$模型的可重正化版本的耦合衰减不能阻止三相点衰退。因此,条纹相位逃逸到无穷远,消除了UV/IR混合的问题。

英文摘要:

We construct and analyze the phase diagram of a self-interacting matrix field in two dimensions coupled to the curvature of the non-commutative truncated Heisenberg space. In the infinite size limit, the model reduces to the renormalizable Grosse-Wulkenhaar's. The curvature term proves crucial for the diagram's structure: when turned off, the triple point collapses into the origin as matrices grow larger; when turned on, the triple point recedes from the origin proportionally to the coupling strength and the matrix size. The coupling attenuation that turns the Grosse-Wulkenhaar model into a renormalizable version of the $ϕ^4_\star$-model cannot stop the triple point recession. As a result, the stripe phase escapes to infinity, removing the problems with UV/IR mixing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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