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arXiv 1403.6310astro-ph.COhep-ph
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我们对暴胀的物理学了解多少?

How much can we learn about the physics of inflation?

Scott Dodelson

摘要:

最近BICEP 2对宇宙微波背景极化中B模式的测量表明,暴胀是由能量标度为$2\times 10^{16}$ GeV的场驱动的。我探讨了即将到来的CMB极化实验的潜力,以进一步限制物理基础的通货膨胀。如果这个信号得到证实,那么两组覆盖更大区域的实验将揭示暴胀。低分辨率测量可以在百分比水平上确定张量与标量的比率,从而将模型彼此区分开来。一个高角分辨率的实验将是必要的,以测量张量谱的倾斜,测试的一致性关系,将倾斜的幅度。

英文摘要:

The recent BICEP2 measurement of B-modes in the polarization of the cosmic microwave background suggests that inflation was driven by a field at an energy scale of $2\times 10^{16}$ GeV. I explore the potential of upcoming CMB polarization experiments to further constrain the physics underlying inflation. If the signal is confirmed, then two sets of experiments covering larger area will shed light on inflation. Low resolution measurements can pin down the tensor to scalar ratio at the percent level, thereby distinguishing models from one another. A high angular resolution experiment will be necessary to measure the tilt of the tensor spectrum, testing the consistency relation that relates the tilt to the amplitude.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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