f(R) Cosmology and Massive Neutrinos

f(R) Cosmology and Massive Neutrinos
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f(R) 宇宙学和大质量中微子

DOI:
10.1142/s2010194512005739
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发表时间:
2012
期刊:
International Journal of Modern Physics: Conferenee Series
影响因子:
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通讯作者:
A. A. Starobinsky and J. Yokoyama
A. A. Starobinsky and J. Yokoyama
中科院分区:
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文献类型:
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作者:
H. Motohashi;A. A. Starobinsky and J. Yokoyama

文献摘要

相似文献

F(R)引力为Λ清洁发展机制模型提供了可行的宇宙学替代方案。在这一理论中,我们讨论了大质量中微子对物质功率谱的影响,以说明由标量子力引起的小尺度密度涨落的反常增长可以通过中微子的自由流动来补偿。因此,如果中微子总质量为O(0.5 eV),则预测状态方程参数wDE=-1的可观测偏差的模型可以与物质簇的观测结果相一致。
f(R) gravity provides viable cosmology alternative to the ΛCDM model. We discuss the effect of massive neutrinos on matter power spectrum in this theory, to show that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by free streaming of neutrinos. As a result, models which predict observable deviation of the equation-of-state parameter wDEfrom wDE= -1 may be reconciled with observations of matter clustering if the total neutrino mass is O(0.5 eV).