arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.4344hep-thgr-qcmath-phmath.MP
收藏

矩阵模型Dirac算子的热核展开和诱导action

Heat kernel expansion and induced action for the matrix model Dirac operator

Daniel N. Blaschke, Harold Steinacker, Michael Wohlgenannt

摘要:

本文计算了在规范不变的紫外截止下,在四维背景下,杨-米尔斯矩阵模型中积分费米子所引起的量子有效作用量。由此产生的作用被重铸成广义矩阵模型的形式,显然保持了裸作用的SO(D)对称性。这提供了非交换(NC)的类似物的西利德威特系数的新兴重力,出现在NC膜,如曲率项。从规范理论的角度来看,这提供了强有力的证据,证明NC N=4 SYM即使在量子水平上也具有隐藏的SO(10)对称性,该对称性会被时空背景自发破缺。几何视图被证明是非常强大的,并允许预测非平凡的循环计算的规范理论。

英文摘要:

We compute the quantum effective action induced by integrating out fermions in Yang-Mills matrix models on a 4-dimensional background, expanded in powers of a gauge-invariant UV cutoff. The resulting action is recast into the form of generalized matrix models, manifestly preserving the SO(D) symmetry of the bare action. This provides noncommutative (NC) analogs of the Seeley-de Witt coefficients for the emergent gravity which arises on NC branes, such as curvature terms. From the gauge theory point of view, this provides strong evidence that the NC N=4 SYM has a hidden SO(10) symmetry even at the quantum level, which is spontaneously broken by the space-time background. The geometrical view proves to be very powerful, and allows to predict non-trivial loop computations in the gauge theory.

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。

↑