Noncommutative Geometry and the Primordial Dipolar Imaginary Power Spectrum

Abstract

We argue that an anisotropic dipolar imaginary primordial power spectrum is possible within the framework of noncommutative space-times. We show that such a spectrum provides a good description of the observed dipole modulation in CMBR data. We extract the corresponding power spectrum from data. The dipole modulation is related to the observed hemispherical anisotropy in CMBR data, which might represent the first signature of quantum gravity.

11 pages 1 figure

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Cited by in corpus (7)

• Dipole Modulation of Cosmic Microwave Background Temperature and Polarization
• Probing statistical isotropy of cosmological radio sources using SKA
• Imprint of Inhomogeneous and Anisotropic Primordial Power Spectrum on CMB Polarization
• Cosmological Power Spectrum in Non-commutative Space-time
• Complete noncommutativity in a cosmological model with radiation
• Finsler space-time can explain both parity asymmetry and power deficit seen in CMB temperature anisotropies
• Anisotropic power spectrum and the observed low-l power in PLANCK CMB data