WMAP 7 year constraints on CPT violation from large angle CMB anisotropies

Abstract

We constrain the rotation angle $\alpha$ of the linear polarization of CMB photons using the large angular scale (up to $\sim 4^{\circ }$) signal in WMAP 7 year data. At these scales, the CMB polarization pattern probes mostly the reionization era. A genuine rotation may be interpreted as cosmological birefringence, which is a well known tracer of new physics, through the breakdown of fundamental symmetries. Our analysis provides $\alpha =-1.6^{\circ }\pm 1.7^{\circ }(3.4^{\circ })$ at 68% (95%) C.L. for the multipoles range $\Delta \ell =2-47$ not including an instrumental systematic uncertainty that the WMAP team estimates at $\pm 1.5^{\circ }$. This improves the bound obtained by WMAP team (Komatsu et al., 2010). Moreover we show, for the first time at low multipoles, the angular power spectrum ${\alpha }_{\ell }$ in search of a possible scale dependence of the birefringence effect. Our findings are compatible with no detection at all angular scales probed here. We finally forecast the capabilities of Planck in tightening the present constraints.

13 pages, 5 figures. Accepted for publication in JCAP

References in corpus (14)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Likelihoods and Parameters from the WMAP data
• Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles, Data Processing, Radiometer Characterization and Systematic Error Limits
• Rotation of Linear Polarization Plane and Circular Polarization from Cosmological Pseudoscalar Fields
• Probing polarization states of primordial gravitational waves with CMB anisotropies
• Parity violation constraints using 2006-2007 QUaD CMB polarization spectra
• Effect on cosmic microwave background polarization of coupling of quintessence to pseudoscalar formed from the electromagnetic field and its dual
• Constraints on CPT violation from WMAP three year polarization data: a wavelet analysis
• New constraints on Parity Symmetry from a re-analysis of the WMAP-7 low resolution power spectra
• CMB Polarization Systematics, Cosmological Birefringence and the Gravitational Waves Background
• Power Asymmetries in the Cosmic Microwave Background Temperature and Polarization patterns
• Limits on Cosmological Birefringence from the Ultraviolet Polarization of Distant Radio Galaxies
• Using CMB data to constrain non-isotropic Planck-scale modifications to Electrodynamics

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