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Paper   IPM / Particles / 17735
School of Particles and Accelerator
  Title:   The impact of the Lorentz symmetry violation on the CMB polarization
  Author(s): 
1.  Seddigheh Tizchang
2.  Rohoollah Mohammadi
3.  She-Sheng Xue
  Status:   Published
  Journal: MG16
  Year:  2023
  Supported by:  IPM
  Abstract:
In the standard cosmological scenario, no circular polarization is predicted for Cosmic Microwave Background (CMB) radiation. However, in the frame of moving particle, Lorentz symmetry violation leads to circular polarization for CMB radiation. We estimate the circular polarization power spectrum CVl(S) in CMB radiation due to Compton scattering in the presence of the Lorentz symmetry violation. We show that the V-mode power spectrum can be obtained in terms of linear polarization power spectrum at the last scattering surface.

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