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题名: A dark energy model characterized by the age of the universe
作者: 蔡荣根
刊名: PHYSICS LETTERS B
出版日期: 2007
卷号: 657, 期号:41004, 页码:228-231
关键词: COSMOLOGICAL CONSTANT ;  SPACE-TIME ;  SUPERNOVAE
学科分类: Physics
通讯作者: Cai, RG , Chinese Acad Sci, Inst Theoret Phys, PO BOx 2735, Beijing 100080, Peoples R China
部门归属: [Cai, RG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: Quantum mechanics together with general relativity leads to the Karolyhazy relation and a corresponding energy density of quantum fluctuations of space-time. Based on the energy density we propose a dark energy model, in which the age of the universe is introduced as the length measure. This dark energy is consistent with astronomical data if the unique numerical parameter in the dark energy model is taken to be a number of order one. The dark energy behaves like a cosmological constant at early time and drives the universe to an eternally accelerated expansion with power-law form at late time. In addition, we point out a subtlety in this kind of dark energy model. (c) 2007 Elsevier B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000251753100011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5617
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:
Cai, Rong-Gen. A dark energy model characterized by the age of the universe[J]. PHYSICS LETTERS B,2007,657(41004):228-231.
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