“School of Particles And Accelerator”
Back to Papers HomeBack to Papers of School of Particles And Accelerator
Paper IPM / Particles And Accelerator / 16174  


Abstract:  
In the standard model of cosmology, the Bmode polarization of the cosmic microwave background can be generated due to the tensor perturbation of metric which is related to gravitational effects in the inflation epoch and scalar perturbation cannot explain Bmode polarization. We consider Compton scattering in the NonCommutative framework and show that Compton scattering in presence of NonCommutative background and scalar mode of perturbation, besides generating circularly polarized microwave, can lead to Bmode polarization of the Cosmic Microwave Background. We estimate that generated Vmode C_VlC
Vl
â
can be expressed as linearly polarized power spectrum C_PlC
Pl
â
as well as Bmode power spectrum C_BlC
Bl
â
as a function of C_VlC
Vl
â
. We show that C_VlC
Vl
â
(C_BlC
Bl
â
) for NCscale _NC 20Î
NC
â
â¼20 TeV are in the range of (nK^2)O(nK
2
) ((pK^2)O(pK
2
)) and higher, respectively, which are in the range of observational data.
Download TeX format 

back to top 