Knowledge Management System of Institute of Theoretical Physics, CAS
Cai, RG; Tuo, ZL; Zhang, HB; Su, QP; Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, POB 2735, Beijing 100190, Peoples R China. | |
Notes on ghost dark energy | |
发表期刊 | PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS |
语种 | 英语 |
关键词 | Large-n-limit Cosmological Constant Current-algebra Scalar Field Model u(1) Supernovae Gravity Vacuum Brane |
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. |
2011 | |
ISSN | 1098-4402 |
卷号 | 14期号:12页码:123501 |
学科领域 | Physics |
收录类别 | SCI |
项目资助者 | National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences ; National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences ; National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences ; National Natural Science Foundation of China [10821504, 10975168, 11035008]; Ministry of Science and Technology of China [2010CB833004]; Chinese Academy of Sciences |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/14214 |
专题 | SCI期刊论文 |
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. |
推荐引用方式 GB/T 7714 | 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. |
APA | Cai, RG,Tuo, ZL,Zhang, HB,Su, QP,&Cai, RG .(2011).Notes on ghost dark energy.PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS,14(12),123501. |
MLA | Cai, RG,et al."Notes on ghost dark energy".PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS 14.12(2011):123501. |
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