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题名: An accelerating universe emergent from the landscape
作者: She, Jian-Huang
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2007
期号: 2, 页码:-
关键词: COSMOLOGICAL CONSTANT ;  LIQUIDS ;  COMPACTIFICATION ;  NEUTRALIZATION ;  SUPERNOVAE
学科分类: Physics
通讯作者: She, JH , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We propose that the existence of the string landscape suggests that the universe can be in a quantum glass state, where an extremely large viscosity is generated, and long distance dynamics slows down. At the same time, the short distance dynamics is not altered due to the separation of timescales. This scenario can help us to understand some controversies in cosmology, for example the natural existence of slow roll inflation and dark energy in the landscape, the apparent smallness of the cosmological constant. We see also that moduli stabilization is no longer necessary. We further identify the glass transition point, where the viscosity diverges, as the location of the cosmic horizon. We try to reconstruct the geometry of the accelerating universe from the structure of the landscape, and find that the metric should have an infinite jump when crossing the horizon. We predict the static coordinate metric for de Sitter space to break down outside the horizon.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000245928000011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5796
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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She, Jian-Huang. An accelerating universe emergent from the landscape[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2007(2):-.
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