暗能量、残余引力波、CMB极化 Dark energy, relic Gw and CMB polarization 张杨( Yang Zhang 中国科学技术大学(USTC) 天体物理中心CFA) 2021/1/25
2021/1/25 1 暗能量、残余引力波、CMB极化 Dark energy, relic GW and CMB polarization 张杨 (Yang Zhang) 中国科学技术大学 (USTC) 天体物理中心(CFA)
Outline Of Topics 一、 Cosmic Dark Energy 二、 Relic Gravitational| Waves CMB Polarizations by RGW 2021/1/25
2021/1/25 2 Outline Of Topics • 一、 Cosmic Dark Energy • 二、 Relic Gravitational Waves • 三、 CMB Polarizations by RGW
Cosmic Dark Energy the effective ym condensate model 2021/1/25
2021/1/25 3 一、 Cosmic Dark Energy -- the effective YM condensate model
Observational Evidence for Accelerating Expansion ·SN|a型超新星 ResS(1998) Permutter(1999) · Tonry(2003),z=0.3~13,8neW Knop(2003),z=0.36-0.86,11new CMB anisotropies(WMAP) Large scale structure etc 2021/1/25
2021/1/25 4 Observational Evidence for Accelerating Expansion • SN Ia型超新星 • Riess(1998) • Permutter(1999) • Tonry(2003), z=0.3~1.3, 8 new • Knop(2003), z=0.36-0.86, 11 new • CMB anisotropies (WMAP) • Large scale structure etc
Models for Dark Energy 1. Cosmological constant ∧ 2. Effective gravity: L=R+ bR InR 3. scalar field: quintessence, k-essence, etc 4. Bag-Model (t.d. lee)(p=const 6. Effective Yang-Mills condensate 2021/1/25
2021/1/25 5 Models for Dark Energy: 1. Cosmological constant: Λ 2. Effective gravity: L = R + bR lnR +… 3. scalar field：quintessence, k-essence, etc 4. Bag-Model (T.D.Lee) φ =const. 5. Effective Yang-Mills condensate