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arXiv 1303.3296hep-thgr-qc
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AdS3的增强渐近对称代数

Enhanced asymptotic symmetry algebra of AdS3

Cedric Troessaert

摘要:

本文对三维空间中具有负宇宙学常数的纯引力问题,引入了Brown-Henneaux边界条件的推广。这导致新的自由度和对称代数的增强。直到零模,它由维拉索罗代数与U(1)流代数的半直积的两个副本组成。相关联的表面电荷代数现在包含三个非零的中心荷:两个通常的布朗-亨诺中心荷和一个新的量。

英文摘要:

A generalization of the Brown-Henneaux boundary conditions is introduced for pure gravity with negative cosmological constant in 3 dimensions. This leads to new degrees of freedom and to an enhancement of the symmetry algebra. Up to the zero modes, it consists of two copies of the semi-direct product of a Virasoro algebra with a U(1) current algebra. The associated surface charge algebra now contains three non-zero central charges: the two usual Brown-Henneaux central charges and one new quantity.

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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