Jul 4 – 11, 2018
Asia/Seoul timezone

The generation of B-mode and circular polarization of cosmic photons due to NonCommutative space-Time background

Jul 5, 2018, 3:30 PM
104 (COEX, Seoul)


COEX, Seoul

Parallel Astro-particle Physics and Cosmology Astro-particle Physics and Cosmology


Dr Seddigheh Tizchang (Institute for Research in Fundamental Sciences (IPM))


In standard model of cosmology, B-mode polarization of the CMB can be generated due to the tensor perturbation of metric which is related to gravitational effects in the inflation epoch and scalar perturbation can not explain B-mode polarization. We consider Compton scattering in non-commutative framework and show that Compton scattering in presence of non-commutative background and scalar mode of perturbation, beside generating a circularly polarized microwave, can leads to a B-mode polarization of the Cosmic Microwave Background.

Primary author

Dr Seddigheh Tizchang (Institute for Research in Fundamental Sciences (IPM))


Dr Saghar Batebi Prof. Mansour Haghighat (Shiraz University) Dr Rohoollah Mohammadi (Iran Science and Technology Museum (IRSTM))

Presentation materials