Inflation in de Sitter spacetime and CMB large scale anomaly

被引：4
|
作者：
Zhao Dong [1 ]
Li Ming-Hua [2 ]
Wang Ping [1 ]
Chang Zhe [1 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China
来源：
CHINESE PHYSICS C | 2015年 / 39卷 / 09期
基金：
中国国家自然科学基金;
关键词：
de Sitter spacetime; dark energy; inflation; anisotropy; PROBE WMAP OBSERVATIONS;
D O I：
10.1088/1674-1137/39/9/095101
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The influence of cosmological constant-type dark energy in the early universe is investigated. This is accommodated by a new dispersion relation in de Sitter spacetime. We perform a global fit to explore the cosmological parameter space by using the CosmoMC package with the recently released Planck TT and WMAP polarization datasets. Using the results from the global fit, we compute a new CMB temperature temperature (TT) spectrum. The obtained TT spectrum has lower power compared with that based on the ACDM model at large scales.
引用
收藏
页数：4
相关论文
共 50 条
  • [1] Inflation in de Sitter spacetime and CMB large scale anomaly
    赵东
    李明华
    王平
    常哲
    Chinese Physics C, 2015, (09) : 67 - 70
  • [2] Large-Scale Corrections to the CMB Anisotropy from Asymptotic de Sitter Mode
    A. Sojasi
    International Journal of Theoretical Physics, 2018, 57 : 1410 - 1416
  • [3] Instability of de Sitter spacetime induced by quantum conformal anomaly
    Matsui, Hiroki
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2019, (01):
  • [4] Large-Scale Corrections to the CMB Anisotropy from Asymptotic de Sitter Mode
    Sojasi, A.
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2018, 57 (05) : 1410 - 1416
  • [5] Schottky anomaly of Reissner-Nordström-de Sitter spacetime
    Zhen, Hai-Long
    Ma, Yu-Bo
    Li, Huai-Fan
    Zhang, Li-Chun
    Du, Yun-Zhi
    CHINESE PHYSICS C, 2025, 49 (03)
  • [6] Simulating, Visualizing and Playing with de Sitter and Anti de Sitter Spacetime
    Kopczynski, Eryk
    COMPUTATIONAL SCIENCE, ICCS 2024, PT I, 2024, 14832 : 136 - 150
  • [7] Inflation and de Sitter thermodynamics
    Frolov, AV
    Kofman, L
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2003, (05):
  • [8] On causality conditions in de Sitter spacetime
    Bittermann, Noah
    McLoughlin, Daniel
    Rosen, Rachel A.
    CLASSICAL AND QUANTUM GRAVITY, 2023, 40 (11)
  • [9] On the quasinormal modes of the de Sitter spacetime
    A. López-Ortega
    General Relativity and Gravitation, 2012, 44 : 2387 - 2400
  • [10] Fermionic Condensate in de Sitter Spacetime
    Saharian, A. A.
    Bezerra de Mello, E. R.
    Kotanjyan, A. S.
    Petrosyan, T. A.
    ASTROPHYSICS, 2021, 64 (04) : 529 - 543
12345