arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0901.0439astro-ph.COgr-qchep-phhep-th
收藏

修正宇宙微波背景各向异性的暴胀预言

Revising the predictions of inflation for the cosmic microwave background anisotropies

Ivan Agullo, Jose Navarro-Salas, Gonzalo J. Olmo, Leonard Parker

摘要:

我们指出,如果考虑量子场重整化,并在哈勃半径交叉时间或它之后的几个e-折叠处计算反项,标量和张量功率谱的慢卷暴胀的预测显着变化。这导致了张量-标量振幅比与谱指数的一致性条件的变化。重新检查的潜力$\bf{ϕ^2, ϕ^4}$,表明两者都是兼容的五年WMAP数据。只有当反项在通货膨胀结束后的更大时间内被评估时,人们才能恢复标准的预测。这里提出的替代预测可能很快就会进入近期实验的测量范围。

英文摘要:

We point out that if quantum field renormalization is taken into account, and the counterterms are evaluated at the Hubble-radius crossing time or few e-foldings after it, the predictions of slow-roll inflation for both the scalar and tensorial power spectrum change significantly. This leads to a change in the consistency condition that relates the tensor-to-scalar amplitude ratio with spectral indices. A reexamination of the potentials $\bf{ϕ^2, ϕ^4}$, shows that both are compatible with five-year WMAP data. Only when the counterterms are evaluated at much larger times beyond the end of inflation one recovers the standard predictions. The alternative predictions presented here may soon come within the range of measurement of near-future experiments.

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。

↑