Cosmological Power Spectrum in Non-commutative Space-time
arXiv:1503.03859 · doi:10.1103/PhysRevD.94.063531
Abstract
We propose a generalized star product which deviates from the standard product when the fields at evaluated at different space-time points. This produces no changes in the standard Lagrangian density in non-commutative space-time but produces a change in the cosmological power spectrum. We show that the generalized star product leads to physically consistent results and can fit the observed data on hemispherical anisotropy in the cosmic microwave background radiation.
5 pages, no figures, major changes
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Cited by in corpus (6)
- Probing statistical isotropy of cosmological radio sources using SKA
- Direction dependence of cosmological parameters due to cosmic hemispherical asymmetry
- Imprint of Inhomogeneous and Anisotropic Primordial Power Spectrum on CMB Polarization
- Complete noncommutativity in a cosmological model with radiation
- Newtonian cosmology and Evolution of kappa-deformed universe
- A comprehensive study of Modulation effects on CMB Polarization