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Huang, Qing-Guo; Li, Miao; Song, Wei; Huang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
Weak gravity conjecture in the asymptotical dS and AdS background
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
AbstractThe 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.
2006
ISSN1126-6708
Issue10Pages:-
Subject AreaPhysics
Indexed BySCI
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5900
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHuang, QG , Acad Sinica, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
Recommended Citation
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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