http://arxiv.org/abs/2001.11689
Certain anomalies in the CMB bring out a tension between the six-parameter flat $\Lambda$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.
A. Ashtekar, B. Gupt, D. Jeong, et. al.
Mon, 3 Feb 20
45/46
Comments: 6 pages, 5 figures, 1 table