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arXiv 1802.07550hep-th
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非对易规范理论与三维引力

Noncommutative Gauge Theory and Gravity in Three Dimensions

Athanasios Chatzistavrakidis, Larisa Jonke, Danijel Jurman, George Manolakos, Pantelis Manousselis, George Zoupanos

摘要:

三维的爱因斯坦-希尔伯特作用量以及德雷拜因和自旋联系的变换规则可以用规范理论自然地描述。在这种精神下,我们使用非对易规范理论中的协变坐标来描述非对易几何框架下的三维引力。我们考虑了基于SU(2)和SU(1,1)的三维非对易空间,分别作为模糊2-球面和模糊2-双曲面的叶理。然后我们在它们的基础上构造了一个U(2)$\times$ U(2)和一个GL(2,$\mathbb{C}$)规范理论,确定了相应的非对易维本和自旋联系.我们用矩阵模型确定了场和作用量的变换,并讨论了它与三维引力的关系。

英文摘要:

The Einstein-Hilbert action in three dimensions and the transformation rules for the dreibein and spin connection can be naturally described in terms of gauge theory. In this spirit, we use covariant coordinates in noncommutative gauge theory in order to describe 3D gravity in the framework of noncommutative geometry. We consider 3D noncommutative spaces based on SU(2) and SU(1,1), as foliations of fuzzy 2-spheres and fuzzy 2-hyperboloids respectively. Then we construct a U(2)$\times$ U(2) and a GL(2,$\mathbb{C}$) gauge theory on them, identifying the corresponding noncommutative vielbein and spin connection. We determine the transformations of the fields and an action in terms of a matrix model and discuss its relation to 3D gravity.

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