Topological properties of the Cosmic Microwave Background polarization map

Details Topological properties of the Cosmic Microwave Background polarization map Topological properties of the Cosmic Microwave Background polarization map

2003-04-22

arxiv.org/abs/astro-ph/0304394v2

Phys.Rev. D67 (2003) 121302

Astronomy and Astrophysics

Astrophysics

3 pagex revtex, 2 figures. Reference added. To be published in PRD Rapid Communications

Scientific paper

10.1103/PhysRevD.67.121302

Rapid progress has been made in observations of the temperature anisotropies of the Cosmic Microwave Background (CMB). These observations have enabled cosmologists to characterize the state of the universe at recombination, and observational efforts are now being directed towards obtaining the polarization map of the CMB. Here we draw an analogy between the CMB polarization map and nematic liquid crystals, pointing out that the two have similar defects. Making use of known results in the theory of defect formation we predict the statistical distribution of defects in the CMB polarization map and provide a novel tool for probing the CMB at large angular scales.

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