Dodging the cosmic curvature to probe the constancy of the speed of light
文献类型：期刊论文
| 作者 | Cai, RG ; Guo, ZK; Yang, T; Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China.
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
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| 出版日期 | 2016 |
| 期号 | 8页码:16 |
| 关键词 | Supernova Type Ia - Standard Candles Alternatives To Inflation |
| DOI | http://dx.doi.org/10.1088/1475-7516/2016/08/016 |
| 英文摘要 | We develop a new model-independent method to probe the constancy of the speed of light c. In our method, the degeneracy between the cosmic curvature and the speed of light can be eliminated, which makes the test more natural and general. Combining the independent observations of-Hubble parameter H(z) and luminosity distance d(L)(z), we use the model-independent smoothing technique, Gaussian processes, to reconstruct them and then detect variation of the speed of light. We find no signal of deviation from the present value of the speed of light c(0). Moreover, to demonstrate the improvement in probing the constancy of the speed of light from future experiments, we produce a series of simulated data. The Dark Energy Survey will be able to detect Delta c/c(0) similar to 1% at similar to 1.5 sigma confidence level and Delta c/c(0) similar to 2% at similar to 3 sigma confidence level. If the errors are reduced to one-tenth of the expected DES ones, it can detect a Delta c/c(0) similar to 0.1% variation at similar to 2 sigma confidence level. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21570]  |
| 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 | Cai, RG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, POB 2735, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Cai, RG,Guo, ZK,Yang, T,et al. Dodging the cosmic curvature to probe the constancy of the speed of light[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2016(8):16. |
| APA | Cai, RG,Guo, ZK,Yang, T,&Cai, RG .(2016).Dodging the cosmic curvature to probe the constancy of the speed of light.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),16. |
| MLA | Cai, RG,et al."Dodging the cosmic curvature to probe the constancy of the speed of light".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2016):16. |
入库方式： OAI收割
来源：理论物理研究所
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