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Weak gravity conjecture in the asymptotical dS and AdS background
Huang, Qing-Guo; Li, Miao; Song, Wei; Huang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
2006
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1126-6708
期号10页码:-
摘要The cosmological observations provide a strong evidence that there is a positive cosmological constant in our universe and thus the spacetime is asymptotical de Sitter space. The conjecture of gravity as the weakest force in the asymptotical dS space leads to a lower bound on the U(1) gauge coupling g, or equivalently, the positive cosmological constant gets an upper bound rho(V) <= g(2)M(p)(4) in order that the U(1) gauge theory can survive in four dimensions. This result has a simple explanation in string theory, i. e. the string scale root alpha' should not be greater than the size of the cosmic horizon. Our proposal in string theory can be generalized to U(N) gauge theory and gives a guideline to the microscopic explanation of the de Sitter entropy. The similar results are also obtained in the asymptotical anti-de Sitter space.
部门归属Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
学科领域Physics
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收录类别SCI
WOS记录号WOS:000242714400031
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5900
专题理论物理所1978-2010年知识产出
通讯作者Huang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
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GB/T 7714
Huang, Qing-Guo,Li, Miao,Song, Wei,et al. Weak gravity conjecture in the asymptotical dS and AdS background[J]. JOURNAL OF HIGH ENERGY PHYSICS,2006(10):-.
APA Huang, Qing-Guo,Li, Miao,Song, Wei,&Huang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China.(2006).Weak gravity conjecture in the asymptotical dS and AdS background.JOURNAL OF HIGH ENERGY PHYSICS(10),-.
MLA Huang, Qing-Guo,et al."Weak gravity conjecture in the asymptotical dS and AdS background".JOURNAL OF HIGH ENERGY PHYSICS .10(2006):-.
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