Gravitational perturbations as TT¯-deformations in 2D dilaton gravity systems
Gravitational perturbations as TT¯-deformations in 2D dilaton gravity systems
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DOI：
10.1016/j.nuclphysb.2019.114901
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发表时间：
2020-02
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影响因子：
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通讯作者：
T. Ishii;Suguru Okumura;J. Sakamoto;Kentaroh Yoshida
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文献类型：
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作者：
T. Ishii;Suguru Okumura;J. Sakamoto;Kentaroh Yoshida
我们考虑了二维伸缩子引力系统的引力扰动，并证明了在一定条件下，这些扰动可以被重塑为T T‘-形变(至少)，其中T是与伸缩子引力耦合的物质场的能量-动量张量。特别地，在此条件下的理论类包括具有负宇宙学常数的Jackiw-Teitelboim(JT)理论，包括共形物质场。这是S.Dubovsky、V.Gorbenko和M.MirBabayi关于平空间JT引力的前人工作的推广[arxiv：1706.06604]。
We consider gravitational perturbations of 2D dilaton gravity systems and show that these can be recast into T T¯-deformations (at least) under certain conditions, where T means the energy-momentum tensor of the matter field coupled to a dilaton gravity. In particular, the class of theories under this condition includes a Jackiw-Teitelboim (JT) theory with a negative cosmological constant including conformal matter fields. This is a generalization of the preceding work on the flat-space JT gravity by S. Dubovsky, V. Gorbenko and M. Mirbabayi [arXiv: 1706.06604].