Imprint of Inhomogeneous and Anisotropic Primordial Power Spectrum on
  CMB Polarization
  We consider an inhomogeneous model and independently an anisotropic model of
primordial power spectrum in order to describe the observed hemispherical
anisotropy in Cosmic Microwave Background Radiation. This anisotropy can be
parametrized in terms of the dipole modulation model of the temperature field.
Both the models lead to correlations between spherical harmonic coefficients
corresponding to multipoles, l and l \pm 1. We obtain the model parameters by
making a fit to TT correlations in CMBR data. Using these parameters we predict
the signature of our models for correlations among different multipoles for the
case of the TE and EE modes. These predictions can be used to test whether the
observed hemispherical anisotropy can be correctly described in terms of a
primordial power spectrum. Furthermore these may also allow us to distinguish
between an inhomogeneous and an anisotropic model.
