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题名: Notes on ghost dark energy
作者: 蔡荣根 ;  Tuo, ZL ;  Zhang, HB ;  Su, QP
刊名: PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
出版日期: 2011
卷号: 14, 期号:12, 页码:123501
关键词: LARGE-N-LIMIT ;  COSMOLOGICAL CONSTANT ;  CURRENT-ALGEBRA ;  SCALAR FIELD ;  MODEL ;  U(1) ;  SUPERNOVAE ;  GRAVITY ;  VACUUM ;  BRANE
学科分类: Physics
通讯作者: Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
部门归属: [Cai, Rong-Gen; Tuo, Zhong-Liang; Zhang, Hong-Bo] Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China; [Su, Qiping] Hangzhou Normal Univ, Dept Phys, Hangzhou 310036, Zhejiang, Peoples R China
英文摘要: We study a phenomenological dark energy model which is rooted in the Veneziano ghost of QCD. In this dark energy model, the energy density of dark energy is proportional to Hubble parameter and the proportional coefficient is of the order Lambda(3)(QCD), where Lambda(QCD) is the mass scale of QCD. The universe has a de Sitter phase at late time and begins to accelerate at redshift around z(acc) similar to 0.6. We fit this model and give the constraints on model parameters, with current observational data including Type Ia supernovea, baryon acoustic oscillation, cosmic microwave background, big bang nucleosynthesis, and Hubble parameter data. We also study the cosmological evolution of the dark energy with interaction with cold dark matter.
资助者: National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences
收录类别: SCI
原文出处: 查看原文
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14214
Appears in Collections:理论物理所2011年知识产出_期刊论文

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Recommended Citation:
Cai, RG,Tuo, ZL,Zhang, HB,et al. Notes on ghost dark energy[J]. PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,2011,14(12):123501.
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