New Constraints On Cosmic Polarization Rotation Including SPTpol B-mode Polarization Observations

Abstract

We present an update of the cosmic polarization rotation (CPR) constraint from the recent SPTpol measurements of sub-degree B-mode polarization in the cosmic microwave background (CMB) of 100 square degrees of sky. Our previous CPR fluctuation constraint from the joint ACTpol-BICEP2-POLARBEAR polarization data is 23.7 mrad (1.36°). With new SPTpol data included, the CPR fluctuation constraint is updated to 17 mrad (1°) with the scalar to tensor ratio r = - 0.05 +- 0.1

6 pages, 3 figures, to be published in Proceedings of the Second LeCosPA Symposium "Everything about Gravity" on December 14-18, 2015 in Taipei

References in corpus (2)

• A Joint Analysis of BICEP2/Keck Array and Planck Data
• From Equivalence Principles to Cosmology: Cosmic Polarization Rotation, CMB Observation, Neutrino Number Asymmetry, Lorentz Invariance and CPT

Cited by in corpus (2)

• Cosmic Polarization Rotation: an Astrophysical Test of Fundamental Physics
• Observational and Experimental Gravity