2009 Fiscal Year Final Research Report
Investigation of the large scale structure and stability of supersymmetric solutions in higher-dimensional supergravities
| Project/Area Number |
18540265
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 | High Energy Accelerator Research Organization (2007-2009)
Kyoto University (2006) |
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Principal Investigator |
KODAMA Hideo High Energy Accelerator Research Organization, 素粒子原子核研究所, 教授 (40161947)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 高次元統一理論 / 重力理論 / ブラックホール / 安定性 |
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| Research Abstract |
The investigations of high-energy particle physics and the evolution of the Universe strongly suggest that our Universe has dimensions greater than 4 on super-micro scales. In order to make clear the validity of this suggestion, we have studied the behavior and properties of universe models and black holes in higher-dimensional gravity theories. As an achievement, we have found a candidate solution describing a dynamical process for a four-dimensional spacetime to be obtained from a higher-dimensional spacetime. Further, we have examined the stability of black holes in higher-dimensional Einstein gravity systematically, and among all, we have discovered that a rapidly rotating black hole is dynamically unstable in higher-dimensional spacetime with negative cosmological constant.
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