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https://idr.nitk.ac.in/jspui/handle/123456789/16581
Title: | Alleviating the Tension in the Cosmic Microwave Background Using Planck-Scale Physics |
Authors: | Ashtekar A. Gupt B. Jeong D. Sreenath V. |
Issue Date: | 2020 |
Citation: | Physical Review Letters , Vol. 125 , 5 , p. - |
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. © 2020 American Physical Society. |
URI: | https://doi.org/10.1103/PhysRevLett.125.051302 http://idr.nitk.ac.in/jspui/handle/123456789/16581 |
Appears in Collections: | 1. Journal Articles |
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