Dipole Modulation of Cosmic Microwave Background Temperature and Polarization

Understand

We propose a dipole modulation model for the Cosmic Microwave Background Radiation (CMBR) polarization field.

• We show that the model leads to correlations between l and l+1 multipoles, exactly as in the case of temperature.
• We obtain results for the case of TE, EE and BB correlations.
• An anisotropic or inhomogeneous model of primordial power spectrum which leads to such correlations in temperature field also predicts similar correlations in CMBR polarization.