期刊
EUROPEAN PHYSICAL JOURNAL C
卷 78, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-018-6267-1
关键词
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资金
- NSFC [11475024, 11235003, 11575022, 11175016]
We show that two-dimensional JT gravity, the holographic dual of the IR fixed point of the SYK model, can be obtained from the consistent Kaluza-Klein reduction of a class of EMD theories in general D dimensions. For D = 4, 5, the IND theories can be themselves embedded in supergravities. These exact embeddings provide the holographic duals in the framework of strings and M-theory. We find that a class of JT gravity solutions can be lifted to become time-dependent charged extremal black holes. They can be further lifted, for example, to describe the D1/D5-branes where the worldsheet is the Milne universe, rather than the typical Minkowski spacetime.
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