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| 研究生： |
簡上淯 Chien, Shang-Yu |
|---|---|
| 論文名稱： |
在f(R)重力中 Tsujikawa 模型的宇宙演化之探討 Cosmological evolutions in Tsujikawa model of f(R) Gravity |
| 指導教授： |
張維甫
Chang, We-Fu |
| 口試委員: |
耿朝強
Geng, Chao-Qiang 何小剛 He, Xiao-Gang 潘國全 Pan, Kuo-Chuan 栗崇中 Lih, Chong-Chung |
| 學位類別： |
博士 Doctor |
| 系所名稱： |
理學院 - 物理學系 Department of Physics |
| 論文出版年： | 2020 |
| 畢業學年度： | 108 |
| 語文別： | 英文 |
| 論文頁數： | 44 |
| 中文關鍵詞： | 暗能量 、重力修正 、宇宙演化 |
| 外文關鍵詞： | Tsujikawa, f(R) gravity, Dark Energy, Cosmological Evolution |
| 相關次數： | 點閱：2 下載：0 |
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我們專注於可行f(R)重力理論的分支，Tsujikawa模型的宇宙學特性，其中包括宇宙背景演化與線性微擾理論。利用CosmoMC的軟體，我們得到了宇宙學參數的限制，並證明了Tsujikawa 模型下的宇宙，微中子總質量的限制範圍會被放寬，如同其他的f(R)重力模型。另外，我們也討論了狀態方程式與減速參數的演化並與 ΛCDM 模型做比較。
We concentrate on the cosmological properties in the Tsujikawa model (TM) of viable f(R) gravity with the dynamical background evolution and linear perturbation theory by using the CosmoMC package. We study the constraints of the cosmological variables along with the model parameter from the current observational data. In particular, we show that the matter density fluctuation is enhanced and the constraint of the neutrino mass sum is relaxed in the TM, which are similar to other viable f(R) models. In addition, we discuss the parameters of the deceleration and equation of state for dark energy in the TM and compare them with those in the ΛCDM model.
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