scholarly journals Deformation of axion potentials: Implications for spontaneous baryogenesis, dark matter, and isocurvature perturbations

2019 ◽  
Vol 99 (4) ◽  
Author(s):  
Kyu Jung Bae ◽  
Jeff Kost ◽  
Chang Sub Shin
Keyword(s):  
Dark Matter ◽  
Isocurvature Perturbations

scholarly journals Suppressing isocurvature perturbations of QCD axion dark matter

2013 ◽  
Vol 727 (4-5) ◽  
pp. 448-451 ◽  
Author(s):  
Kwang Sik Jeong ◽  
Fuminobu Takahashi
Keyword(s):  
Dark Matter ◽  
Isocurvature Perturbations

scholarly journals Isocurvature perturbations of dark energy and dark matter from the Swampland conjecture

2019 ◽  
Vol 789 ◽  
pp. 387-392 ◽  
Author(s):  
Hiroki Matsui ◽  
Fuminobu Takahashi ◽  
Masaki Yamada
Keyword(s):  
Dark Matter ◽  
Dark Energy ◽  
Isocurvature Perturbations

scholarly journals Baryons do trace dark matter 380,000 years after the big bang: Search for compensated isocurvature perturbations with WMAP 9-year data

2014 ◽  
Vol 89 (2) ◽  
Author(s):  
Daniel Grin ◽  
Duncan Hanson ◽  
Gilbert P. Holder ◽  
Olivier Doré ◽  
Marc Kamionkowski
Keyword(s):  
Dark Matter ◽  
Big Bang ◽  
The Big Bang ◽  
Isocurvature Perturbations

scholarly journals SEARCHING FOR DARK MATTER ISOCURVATURE INITIAL CONDITIONS WITH N-BODY SIMULATIONS

2012 ◽  
Vol 21 (03) ◽  
pp. 1250021
Author(s):  
JIE LIU
Keyword(s):  
Dark Matter ◽  
Power Spectrum ◽  
Large Scale ◽  
Initial Conditions ◽  
Mass Function ◽  
Matter Power Spectrum ◽  
Point Correlation ◽  
Point Correlation Function ◽  
Best Fit ◽  
Isocurvature Perturbations

Small fraction of isocurvature perturbations may exist and correlate with adiabatic perturbations in the primordial perturbations. Naively switching off isocurvature perturbations may lead to biased results. We study the effect of dark matter isocurvature on the structure formation through N-body simulations. From the best-fit values, we run four sets of simulation with different initial conditions and different box sizes. We find that, if the fraction of dark matter isocurvature is small, we cannot detect its signal through matter power spectrum and two-point correlation function with large scale survey. However, the halo mass function can give an obvious signal. Compared to 5% difference on matter power spectrum, it can get 37% at z = 3 on halo mass function. This indicates that future high precise cluster count experiment can give stringent constraints on dark matter isocurvature perturbations.

Bounds on cold dark matter and neutrino isocurvature perturbations from CMB and LSS data

2004 ◽  
Vol 70 (10) ◽  
Author(s):  
María Beltrán ◽  
Juan García-Bellido ◽  
Julien Lesgourgues ◽  
Alain Riazuelo
Keyword(s):  
Dark Matter ◽  
Cold Dark Matter ◽  
Isocurvature Perturbations
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