Matter Power Spectrum in f(R) Gravity with Massive Neutrinos

被引：35
|
作者：
Motohashi, Hayato [1 ,2 ]
Starobinsky, Alexei A. [2 ,3 ]
Yokoyama, Jun'ichi [2 ,4 ]
机构：
[1] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan
[2] Univ Tokyo, Grad Sch Sci, RESCEU, Tokyo 1130033, Japan
[3] LD Landau Theoret Phys Inst, Moscow 119334, Russia
[4] Univ Tokyo, IPMU, Kashiwa, Chiba 2778568, Japan
来源：
PROGRESS OF THEORETICAL PHYSICS | 2010年 / 124卷 / 03期
关键词：
PERTURBATIONS; MODELS;
D O I：
10.1143/PTP.124.541
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of massive neutrinos on matter power spectrum is discussed in the context of f(R) gravity. It is shown that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by the free streaming of neutrinos. As a result, models that predict observable deviation of the equation-of-state parameter wDE from wDE = -1 can be reconciled with observations of matter clustering if the total neutrino mass is O(0.5 eV).
引用
收藏
页码：541 / 546
页数：6
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