http://arxiv.org/abs/1903.04700
The next generation of instruments designed to measure the polarization of the cosmic microwave background (CMB) will provide a historic opportunity to open the gravitational wave window to the primordial Universe. Through high sensitivity searches for primordial gravitational waves, and tighter limits on the energy released in processes like phase transitions, the CMB polarization data of the next decade has the potential to transform our understanding of the laws of physics underlying the formation of the Universe.
S. Shandera, P. Adshead, M. Amin, et. al.
Wed, 13 Mar 19
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Comments: 5 pages + references; Submitted to the Astro2020 call for science white papers