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题名: Weak gravity conjecture in the asymptotical dS and AdS background
作者: Huang, Qing-Guo ;  Li, Miao ;  Song, Wei
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2006
期号: 10, 页码:-
学科分类: Physics
通讯作者: Huang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000242714400031
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5900
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Huang, Qing-Guo,Li, Miao,Song, Wei. Weak gravity conjecture in the asymptotical dS and AdS background[J]. JOURNAL OF HIGH ENERGY PHYSICS,2006(10):-.
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