Dark energy and the future fate of the Universe
文献类型：期刊论文
| 作者 | Gong, Yungui; Zhang, Yuan-Zhong ; Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China
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| 刊名 | MODERN PHYSICS LETTERS A
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| 出版日期 | 2007 |
| 卷号 | 22期号:35页码:2689-2699 |
| 关键词 | Model Constraints Acceleration Redshift Transition Evolution |
| ISSN号 | 0217-7323 |
| 英文摘要 | We consider the possibility of observing the onset of the late time inflation of our patch of the Universe. The Hubble size criterion and the event horizon criterion are applied to several dark energy models to discuss the problem of future inflation of the Universe. We find that the acceleration has not lasted long enough to confirm the onset of inflation by present observations for the dark energy model with constant equation of state, the holographic dark energy model and the generalized Chaplygin gas (GCG) model. For the flat Lambda CDM model with Omega(m0) = 0.3, we find that if we use the Hubble size criterion, we need to wait until the a(v) which is the scale factor at the time when the onset of inflation is observed reaches 3.59 times of scale factor a(T) when the onset of inflation is observed reaches 3.59 times of the scale factor a(T) when the Universe started acceleration, and we need to wait until a(v) = 2.3a(T) to see the onset of inflation if we use the event horizon criterion. For the flat holographic dark energy model with d = 1, we find that a(v) = 3.46a(T) with the Hubble horizon and a(v) = 2.34a(T) with the event horizon, respectively. For the flat GCG model with the best supernova fitting parameter alpha = 1.2, we find that a(v) = 5.50a(T) with the Hubble horizon and a(v) = 2.08a(T) with the event horizon, respectively. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000251805600007 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5626]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Yungui,Zhang, Yuan-Zhong,Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China. Dark energy and the future fate of the Universe[J]. MODERN PHYSICS LETTERS A,2007,22(35):2689-2699. |
| APA | Gong, Yungui,Zhang, Yuan-Zhong,&Gong, YG , Chongqing Univ Posts & Telecommun, Coll Elect Engn, Chongqing 400065, Peoples R China.(2007).Dark energy and the future fate of the Universe.MODERN PHYSICS LETTERS A,22(35),2689-2699. |
| MLA | Gong, Yungui,et al."Dark energy and the future fate of the Universe".MODERN PHYSICS LETTERS A 22.35(2007):2689-2699. |
入库方式： OAI收割
来源：理论物理研究所
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