论文标题
使用普朗克级物理学来减轻宇宙微波背景中的张力
Alleviating the Tension in the Cosmic Microwave Background using Planck-Scale Physics
论文作者
论文摘要
CMB中的某些异常引起了六参数Flat $λ$ CDM模型与CMB数据之间的张力。我们使用Loop Quantum宇宙学（LQC）预测来重新审视Planck分析，并表明LQC减轻了大规模功率异常和镜头幅度的张力。出现这些差异是因为在LQC中，原始功率谱是针对小$ k $的规模，并具有特定的功率抑制。我们以大规模的$ B $ mode极化功率谱在较大的光学深度和功率抑制的预测中进行了预测。
Certain anomalies in the CMB bring out a tension between the six-parameter flat $Λ$CDM model and the CMB data. We revisit the PLANCK analysis with loop quantum cosmology (LQC) predictions and show that LQC alleviates both the large-scale power anomaly and the tension in the lensing amplitude. These differences arise because, in LQC, the primordial power spectrum is scale dependent for small $k$, with a specific power suppression. We conclude with a prediction of larger optical depth and power suppression in the $B$-mode polarization power spectrum on large scales.
