期刊
EUROPEAN PHYSICAL JOURNAL C
卷 79, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-019-7075-y
关键词
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资金
- National Science Foundation [Phys-1518371]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy [EXC-2111 - 390814868]
The idea of asymptotically free gravity is implemented using a constrained mimetic scalar field. The effective gravitational constant is assumed to vanish at some limiting curvature. As a result singularities in spatially flat Friedmann and Kasner universes are avoided. Instead, the solutions in both cases approach a de Sitter metric with limiting curvature. We show that quantum metric fluctuations vanish when this limiting curvature is approached.
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