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Paper   IPM / Astronomy / 13907
School of Astronomy
  Title:   Expected dipole asymmetry in CMB polarization
1.  M.H. Namjoo
2.  A.A. Abolhasani
3.  H. Assadullahi
4.  S. Baghram
5.  H. Firouzjahi
6.  D. Wands
  Status:   Published
  Journal: JCAP
  Vol.:  2015
  Year:  2015
  Pages:   10
  Supported by:  IPM
We explore the hemispherical asymmetry predicted in cosmic microwave background polarization when there is an asymmetry in temperature anisotropies due to primordial perturbations. We consider the cases of asymmetries due to adiabatic and isocurvature modes, and tensor perturbations. We show that the asymmetry in the TE, EE and/or BB correlations can be substantially larger than those in the TT power spectrum in certain cases. The relative asymmetry in the different cross-correlations, as well as the angular scale dependence, can in principle distinguish between different origins for the asymmetry.

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