@article{2739e103b41e4520960d05a99e4bee0f,
title = "Alleviating the Tension in the Cosmic Microwave Background Using Planck-Scale Physics",
abstract = "Certain anomalies in the CMB bring out a tension between the six-parameter flat ΛCDM 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.",
author = "Abhay Ashtekar and Brajesh Gupt and Donghui Jeong and V. Sreenath",
note = "Funding Information: We would like to thank Ivan Agullo and Charles Lawrence for valuable inputs and Pawel Bielewicz for help with Fig. . This work was supported in part by the NSF Grants No. PHY-1505411 and No. PHY-1806356, the NASA ATP Grant No. 80NSSC18K1103, and the Eberly research funds of Penn State. V. S. was supported by the Inter-University Centre for Astronomy and Astrophysics, Pune during the early stages of this work. Portions of this research was conducted with high performance computing resources provided by Louisiana State University . Publisher Copyright: {\textcopyright} 2020 American Physical Society.",
year = "2020",
month = jul,
day = "31",
doi = "10.1103/PhysRevLett.125.051302",
language = "English (US)",
volume = "125",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "5",
}