Kavli Affiliate: Toshiya Namikawa | First 5 Authors: Blake D. Sherwin, Toshiya Namikawa, , , | Summary: The search for cosmic polarization rotation or birefringence in the CMB is well-motivated because it can provide powerful constraints on parity-violating new physics, such as axion-like particles. In this paper we point out that since the CMB polarization […]
Continue.. Cosmic birefringence tomography and calibration-independence with reionization signals in the CMB