Parity violation constraints using 2006-2007 QUaD CMB polarization spectra

(10) Kavli Institute for Cosmological Physics; (11) Laboratoire APC/CNRS; (12) School of Physics; 2); 2) ((1) Kavli Institute for Particle Astrophysics; (2) School of Physics; (3) California Institute of Technology; 4); (4) Jet Propulsion Laboratory; 5)

arxiv: 0811.0618 · v4 · submitted 2008-11-04 · 🌌 astro-ph · hep-ph

Parity violation constraints using 2006-2007 QUaD CMB polarization spectra

QUaD Collaboration: E. Y. S. Wu (1) , P. Ade (2) , J. Bock (3 , 4) , M. Bowden (1 , 5) , M. L. Brown (6) , G. Cahill (7)

show 54 more authors

P. G. Castro (8 9) S. Church (1) T. Culverhouse (10) R. Friedman (10) K. Ganga (11) W. K. Gear (2) S. Gupta (2) J. Hinderks (1) J. Kovac (3) A. E. Lange (3) E. Leitch (3 S. J. Melhuish (12) Y. Memari (9) J. A. Murphy (7) A. Orlando (3 2) L. Piccirillo (12) C. Pryke (10) N. Rajguru (2) B. Rusholme (1) R. Schwarz (10) C. O'Sullivan (7) A. N. Taylor (9) K. L. Thompson (1) A. H. Turner (2) M. Zemcov (4 3 2) ((1) Kavli Institute for Particle Astrophysics Cosmology Department of Physics Stanford University (2) School of Physics Astronomy Cardiff University (3) California Institute of Technology (4) Jet Propulsion Laboratory (5) School of Physics (6) Cavendish Laboratory University of Cambridge (7) Department of Experimental Physics National University of Ireland Maynooth (8) CENTRA Departamento de Fisica Universidade Tecnica de Lisboa (9) Institute for Astronomy University of Edinburgh (10) Kavli Institute for Cosmological Physics Department of Astronomy & Astrophysics Enrico Fermi Institute University of Chicago (11) Laboratoire APC/CNRS Batiment Condorcet (12) School of Physics University of Manchester)

This is my paper

classification 🌌 astro-ph hep-ph

keywords quadspectraconstraincosmologicalinteractionsparitypolarizationpossible

0 comments

read the original abstract

We constrain parity-violating interactions to the surface of last scattering using spectra from the QUaD experiment's second and third seasons of observations by searching for a possible systematic rotation of the polarization directions of CMB photons. We measure the rotation angle due to such a possible "cosmological birefringence" to be 0.55 deg. +/- 0.82 deg. (random) +/- 0.5 deg. (systematic) using QUaD's 100 and 150 GHz TB and EB spectra over the multipole range 200 < l < 2000, consistent with null, and constrain Lorentz violating interactions to < 2^-43 GeV (68% confidence limit). This is the best constraint to date on electrodynamic parity violation on cosmological scales.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

String Axiverse
hep-th 2009-05 unverdicted novelty 7.0

String theory predicts an axiverse of ultralight axions whose effects on CMB polarization, matter power spectrum, and black hole superradiance can be probed by future astrophysical experiments.
Cosmic Birefringence from the Atacama Cosmology Telescope Data Release 6
astro-ph.CO 2025-09 conditional novelty 4.0

Bayesian analysis of ACT DR6 CMB polarization data measures cosmic birefringence angle β = 0.215° ± 0.074° excluding zero at 2.9σ, consistent with prior WMAP and Planck results but limited by unexplained systematics.