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
  • [11] Rational wavefunctions in de Sitter spacetime
    Goodhew, Harry
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2023, (03):
  • [12] On de Sitter spacetime and string theory
    Berglund, Per
    Hubsch, Tristan
    Minic, Djordje
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2023, 32 (09):
  • [13] Entanglement dynamics in de Sitter spacetime
    Kukita, Shingo
    Nambu, Yasusada
    CLASSICAL AND QUANTUM GRAVITY, 2017, 34 (23)
  • [14] A tripartite entanglement in de Sitter spacetime
    Bak, Sang-Eon
    Alsing, Paul M.
    Miller, Warner A.
    Aslmarand, Shahabeddin M.
    Ahn, Doyeol
    CHINESE JOURNAL OF PHYSICS, 2024, 88 : 462 - 474
  • [15] Renormalized entropies in a de Sitter spacetime
    Xiang, L
    Shen, YG
    GENERAL RELATIVITY AND GRAVITATION, 2005, 37 (07) : 1221 - 1231
  • [16] Stochastic Tunneling in de Sitter Spacetime
    Miyachi, Taiga
    Soda, Jiro
    Tokuda, Junsei
    UNIVERSE, 2024, 10 (07)
  • [17] CASIMIR EFFECT IN DE SITTER SPACETIME
    Saharian, A. A.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2011, 26 (22): : 3833 - 3844
  • [18] Inflation Driven by q-de Sitter
    Setare, M. R.
    Momeni, D.
    Kamali, V.
    Myrzakulov, R.
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2016, 55 (02) : 1003 - 1018
  • [19] Renormalized entropies in a de Sitter spacetime
    Li Xiang
    You-Gen Shen
    General Relativity and Gravitation, 2005, 37 : 1221 - 1231
  • [20] Discrete Symmetries and de Sitter Spacetime
    Cotaescu, Ion I.
    Pascu, Gabriel
    TIM 2013 PHYSICS CONFERENCE, 2014, 1634 : 30 - 34
12345