f(R) Gravity and Neutrino Cosmology

被引:0
|
作者
Motohashi, Hayato [1 ,2 ]
Yokoyama, Jun'ichi [2 ,3 ]
机构
[1] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
[2] Univ Tokyo, Grad Sch Sci, Res Ctr Early Universe RESCEU, Tokyo 1130033, Japan
[3] TODIAS Univ Tokyo, WPI, Kavli IPMU, Kashiwa, Chiba 2778568, Japan
来源
UNIVERSE-TAIPEI | 2013年 / 1卷 / 02期
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中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
f (R) gravity provides an alternative explanation to the cosmic acceleration, which also possesses unique features absent in the standard Lambda CDM model. We first review some aspects of this theory and then discuss the effect of massive neutrinos on matter power spectrum in this theory. It is shown that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by free streaming of neutrinos. Implications to cosmological bounds on neutrino masses, both standard and sterile, are discussed.
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页码:7 / 16
页数:10
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