2017/11/30 by Kenji Tomita · 2 citations
Physics and Astronomy · #Constant (computer programming) #Cosmological constant #Cosmological model #Cosmological perturbation theory #Cosmology #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #High-Energy Particle Collisions Research #Hubble's law #Tension (geology) #astro-ph.CO
paper · pdf · doi:10.1093/ptep/pty015
published in Progress of Theoretical and Experimental Physics 2018(2) (University of Oxford) · 5 pages
openalex created_date 2017/11/17 · openalex publication_date 2018/01/31 · arxiv created 2018/03/23 · arxiv updated 2018/03/26 · openalex updated_date 2026/08/05
The super-horizon second-order density perturbations corresponding to cosmological random fluctuations are considered, their non-vanishing spatial average is shown to be useful in solving the serious problem with the cosmological tension between the measured Hubble constants at present and those at the early stage, and the difference from previous works on the backreaction is discussed.