Quintessence and the Separation of Cosmic Microwave Background Peaks
Quintessence and the Separation of Cosmic Microwave Background Peaks
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DOI：
10.1086/322253
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发表时间：
2000-12
期刊：
影响因子：
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通讯作者：
M. Doran;M. Lilley;J. Schwindt;C. Wetterich
中科院分区：
文献类型：
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作者：
M. Doran;M. Lilley;J. Schwindt;C. Wetterich
我们提出，应该可以使用宇宙微波背景（CMB）来区分具有不同状态方程的暗能量模型，其中包括从许多模型的精髓中区分宇宙学常数。CMB各向异性中的峰的分离可以通过三个量来参数化：今天的精华的量、最后散射的量和精华的平均状态方程。特别是，我们表明，CMB峰可以用来测量的暗能量的量之前，最后散射。
We propose that it should be possible to use the cosmic microwave background (CMB) to discriminate between dark energy models with different equations of state, which includes distinguishing a cosmological constant from many models of quintessence. The separation of peaks in the CMB anisotropies can be parametrized by three quantities: the amount of quintessence today, the amount at last scattering, and the averaged equation of state of quintessence. In particular, we show that CMB peaks can be used to measure the amount of dark energy present before last scattering.