Gravitational collapse and spacetime singularities in quantum gravity
| Project/Area Number |
21740190
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Rikkyo University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 相対論 / 重力理論 / 時空特異点 / 量子重力 / 一般相対論 / 量子宇宙論 |
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| Research Abstract |
We have revealed the relationship between quantisation ambiguities in quantum cosmology and the absence of spacetime singularity, deduced the astrophysical observational implications of superextremal Kerr spacetimes and wormhole structures, both of which may be possible under significant quantum gravity effects, and indicated the possibility of particle collision near the horizon of near-extremal rotating black holes of which the centre-of-mass energy might reach the Planck scale.
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Report
(5 results)
Research Products
(96 results)
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[Journal Article] Self-similar black holes in an accelerated universe2009
Author(s)
Tomohiro Harada
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Journal Title
AIP Conf. Proc. (Physics and Mathematics of Gravitation: the Proceedings of the Spanish Relativity Meeting 2008, 15 - 19 Sep 2008, Salamanca, Spain", ed. K.E. Kunze, M. Mars and M.A. Vazquez-Mozo, (American Insitute of Physics, New York, 2009))
Volume: 1122
Pages: 288-291
URL
Related Report
Peer Reviewed
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