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arXiv 1209.5597hep-thgr-qc
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渐近AdS_3空间的推广与SL(N)的几何

On generalizations of asymptotically AdS_3 spaces and geometry of SL(N)

Heikki Arponen

摘要:

在三维和二维空间中,$AdS$空间的渐近对称群是无穷维的。这可以通过注意$AdS_3 \simeq SL(2)$和$AdS_2 \simeq SL(2)/SO(2)$的关系很容易地解释,即渐近对称性实际上是李群SL(2)的渐近对称性。正如作者在以前的工作中所表明的那样,在SL(3)的情形中也可以找到类似的无穷维渐近对称群,而且很可能在其它非紧李群及其齐性空间中也可以找到类似的无穷维渐近对称群。本工作的目的是通过寻找边界理论能量动量张量,从李群的角度详细地重新审视$AdS_3$空间,并准备处理SL(3)和SL(N)的情况。

英文摘要:

In three and two dimensions the asymptotic symmetry groups of $AdS$ spaces are infinite dimensional. This can be explained easily by noting the relations $AdS_3 \simeq SL(2)$ and $AdS_2 \simeq SL(2)/SO(2)$, i.e. that the asymptotic symmetries are in fact that of the Lie group SL(2). As show in the author's previous work, similar infinite dimensional asymptotic symmetry groups can be found in the case of SL(3) and probably also for other noncompact Lie groups and their homogeneous spaces. The purpose of the present work is to revisit the $AdS_3$ space in detail from the Lie group point of view by finding the boundary theory energy-momentum tensor and to prepare to tackle the SL(3) and SL(N) cases.

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