2005/01/31 by Zhuoyi Huang, Zhuo-Yi Huang, Bin Wang +3 · 2 citations
Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #COSMIC cancer database #Cosmic background radiation #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark energy #Duality (order theory) #Fluctuation spectrum #Holography #Optics #Physics #Quantum electrodynamics #Quantum mechanics #Radiation #Radio Astronomy Observations and Technology #Spectral density #Theoretical physics #Universe #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.1088/1475-7516/2006/05/013
published as JCAP 0605 (2006) 013 · 12 pages, 5 figures, revised version, accepted for publication in JCAP
arxiv created 2006/04/21 · openalex publication_date 2006/05/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the question of the suppression of the CMB power spectrum for the lowest multipoles in closed Universes. The intrinsic reason for a lowest cut-off in closed Universes, connected with the discrete spectrum of the wavelength, is shown not to be enough to explain observations. We thus extend the holographic cosmic duality to closed universes by relating the dark energy equation of state and the power spectrum, showing a suppression behaviour which describes the low features extremely well. We also explore the possibility to disclose the nature of the dark energy from the observed small CMB spectrum by employing the holographic idea.