Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity
文献类型：期刊论文
| 作者 | Wu, PX; Zhang SN(张双南) ; Zhang, SN
|
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2008 |
| 期号 | 6页码:7 |
| 关键词 | dark matter dark energy theory quantum gravity phenomenology |
| 通讯作者 | [Wu, Puxun ; Zhang, Shuang Nan] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China ; [Wu, Puxun ; Zhang, Shuang Nan] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China ; [Wu, Puxun] Cent S Univ Forestry & Technol, Sch Sci, Changsha 410004, Hunan, Peoples R China ; [Wu, Puxun] Cent S Univ Forestry & Technol, Inst Math Phys, Changsha 410004, Hunan, Peoples R China ; [Zhang, Shuang Nan] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Zhang, Shuang Nan] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA |
| 英文摘要 | The dynamics of the interacting dark energy model in loop quantum cosmology (LQC) is studied in this paper. The dark energy has a constant equation of state wx and interacts with dark matter through a form 3cH(rho(x) + rho(m)). We find that for the quintessence model (w(x) > -1) the cosmological evolution in LQC is the same as that in classical Einstein cosmology, whereas for phantom dark energy (w(x) < -1), although there are the same critical points in LQC and classical Einstein cosmology, the loop quantum effect significantly reduces the parameter spacetime (c, w(x)) required by stability. If parameters c and wx satisfy the conditions that the critical points are existing and stable, the universe will enter an era dominated by dark energy and dark matter with a constant energy ratio between them, and accelerate forever; otherwise it will enter an oscillatory regime. Comparing our results with the observations we find at 1 sigma confidence level that the universe will accelerate forever. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257339800027 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240349]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wu, PX,Zhang SN,Zhang, SN. Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2008(6):7. |
| APA | Wu, PX,张双南,&Zhang, SN.(2008).Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),7. |
| MLA | Wu, PX,et al."Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2008):7. |
入库方式： OAI收割
来源：高能物理研究所
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