de Sitter-holographic C functions with a topological, dilatonic twist -: art. no. 064001

被引:17
作者
Medved, AJM [1 ]
机构
[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada
[2] Univ Alberta, Inst Theoret Phys, Edmonton, AB T6G 2J1, Canada
关键词
D O I
10.1103/PhysRevD.66.064001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Recently, the holographic aspects of asymptotically de Sitter spacetimes have generated substantial literary interest. The plot continues in this paper, as we investigate a certain class of dilatonically deformed "topological" de Sitter solutions [which were introduced by R. Cai, Y. Myung, and Y. Zhang, Phys. Rev. D 65, 084019 (2002)]. Although such solutions possess a detrimental cosmological singularity, their interpretation from a holographic perspective remains somewhat unclear. The current focus is on the associated generalized C functions, which are shown to maintain their usual monotonicity properties in spite of this exotic framework. These findings suggest that such topological solutions may still play a role in our understanding of quantum gravity with a positive cosmological constant.
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页数:10
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