2015 Fiscal Year Final Research Report
Generalized Gravity with Higher Order Derivatives, Superstring Theories and their Verification
| Project/Area Number |
24540290
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kinki University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 量子重力理論 / 高階微分 / 厳密くりこみ群 / 漸近安全性 / 紫外固定点 / 超弦理論 |
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| Outline of Final Research Achievements |
We have found that there are nontrivial ultraviolet fixed points on arbitrary backgrounds in higher derivative gravity, which are hence asymptotic safe. This means that these theories can be ultraviolet complete quantum theories of gravity. As physical applications of higher derivative gravities, we have constructed charged black hole solutions in 4 to 10 dimensions as well as de Sitter cosmological solutions even for negative cosmological constant. The latter is viable solution for early cosmology. We have also shown the consistency of massive gravity under arbitrary backgrounds. These results give step towards verification of quantum gravity in this approach.
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| Free Research Field |
素粒子論
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